Home / 738,516.28-1,107,331.52-338,656.16

Finding the Fourth Proportional to 738,516.28, 1,107,331.52 and 338,656.16

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Solution

The fourth proportional to 738,516.28, 1,107,331.52 and 338,656.16 is: 507,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,516.28 : 1,107,331.52 = 338,656.16 : x
  2. Step 2: Convert to fraction form
    738,516.28/1,107,331.52 = 338,656.16/x
  3. Step 3: Cross multiply
    738,516.28x = 1,107,331.52 × 338,656.16
  4. Step 4: Simplify right side
    738,516.28x = 375,004,640,410.16
  5. Step 5: Solve for x
    x = 375,004,640,410.16/738,516.28
  6. Step 6: Final answer
    x = 507,781.14

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Double scale
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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.