Home / 649,740.40-974,610.60-492,276.40

Finding the Fourth Proportional to 649,740.40, 974,610.60 and 492,276.40

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Solution

The fourth proportional to 649,740.40, 974,610.60 and 492,276.40 is: 738,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,740.40 : 974,610.60 = 492,276.40 : x
  2. Step 2: Convert to fraction form
    649,740.40/974,610.60 = 492,276.40/x
  3. Step 3: Cross multiply
    649,740.40x = 974,610.60 × 492,276.40
  4. Step 4: Simplify right side
    649,740.40x = 479,777,797,569.84
  5. Step 5: Solve for x
    x = 479,777,797,569.84/649,740.40
  6. Step 6: Final answer
    x = 738,414.60

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Half scale
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Double scale
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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.