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Finding the Fourth Proportional to 424,526.92, 585,793.78 and 287,004.90

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Solution

The fourth proportional to 424,526.92, 585,793.78 and 287,004.90 is: 396,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,526.92 : 585,793.78 = 287,004.90 : x
  2. Step 2: Convert to fraction form
    424,526.92/585,793.78 = 287,004.90/x
  3. Step 3: Cross multiply
    424,526.92x = 585,793.78 × 287,004.90
  4. Step 4: Simplify right side
    424,526.92x = 168,125,685,249.52
  5. Step 5: Solve for x
    x = 168,125,685,249.52/424,526.92
  6. Step 6: Final answer
    x = 396,030.68

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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.