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Finding the Fourth Proportional to 555,839.30, 766,762.42 and 338,114.54

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Solution

The fourth proportional to 555,839.30, 766,762.42 and 338,114.54 is: 466,418.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,839.30 : 766,762.42 = 338,114.54 : x
  2. Step 2: Convert to fraction form
    555,839.30/766,762.42 = 338,114.54/x
  3. Step 3: Cross multiply
    555,839.30x = 766,762.42 × 338,114.54
  4. Step 4: Simplify right side
    555,839.30x = 259,253,522,927.59
  5. Step 5: Solve for x
    x = 259,253,522,927.59/555,839.30
  6. Step 6: Final answer
    x = 466,418.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.