Home / 938,542.74-1,407,814.08-432,954.14

Finding the Fourth Proportional to 938,542.74, 1,407,814.08 and 432,954.14

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Solution

The fourth proportional to 938,542.74, 1,407,814.08 and 432,954.14 is: 649,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,542.74 : 1,407,814.08 = 432,954.14 : x
  2. Step 2: Convert to fraction form
    938,542.74/1,407,814.08 = 432,954.14/x
  3. Step 3: Cross multiply
    938,542.74x = 1,407,814.08 × 432,954.14
  4. Step 4: Simplify right side
    938,542.74x = 609,518,934,286.29
  5. Step 5: Solve for x
    x = 609,518,934,286.29/938,542.74
  6. Step 6: Final answer
    x = 649,431.20

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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.