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Finding the Fourth Proportional to 649,868.40, 974,802.60 and 492,404.40

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Solution

The fourth proportional to 649,868.40, 974,802.60 and 492,404.40 is: 738,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,868.40 : 974,802.60 = 492,404.40 : x
  2. Step 2: Convert to fraction form
    649,868.40/974,802.60 = 492,404.40/x
  3. Step 3: Cross multiply
    649,868.40x = 974,802.60 × 492,404.40
  4. Step 4: Simplify right side
    649,868.40x = 479,997,089,371.44
  5. Step 5: Solve for x
    x = 479,997,089,371.44/649,868.40
  6. Step 6: Final answer
    x = 738,606.60

Related Problems

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Half scale
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Double scale
Find fourth proportional to 649,869.40, 974,804.10 and 492,405.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.