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Finding the Fourth Proportional to 649,974.40, 974,500.80 and 250,460.80

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Solution

The fourth proportional to 649,974.40, 974,500.80 and 250,460.80 is: 375,513.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,974.40 : 974,500.80 = 250,460.80 : x
  2. Step 2: Convert to fraction form
    649,974.40/974,500.80 = 250,460.80/x
  3. Step 3: Cross multiply
    649,974.40x = 974,500.80 × 250,460.80
  4. Step 4: Simplify right side
    649,974.40x = 244,074,249,968.64
  5. Step 5: Solve for x
    x = 244,074,249,968.64/649,974.40
  6. Step 6: Final answer
    x = 375,513.64

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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.