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Finding the Fourth Proportional to 515,331.92, 772,285.08 and 372,034.64

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Solution

The fourth proportional to 515,331.92, 772,285.08 and 372,034.64 is: 557,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,331.92 : 772,285.08 = 372,034.64 : x
  2. Step 2: Convert to fraction form
    515,331.92/772,285.08 = 372,034.64/x
  3. Step 3: Cross multiply
    515,331.92x = 772,285.08 × 372,034.64
  4. Step 4: Simplify right side
    515,331.92x = 287,316,801,715.17
  5. Step 5: Solve for x
    x = 287,316,801,715.17/515,331.92
  6. Step 6: Final answer
    x = 557,537.37

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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.