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Finding the Fourth Proportional to 657,957.15, 987,029.87 and 202,586.92

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Solution

The fourth proportional to 657,957.15, 987,029.87 and 202,586.92 is: 303,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,957.15 : 987,029.87 = 202,586.92 : x
  2. Step 2: Convert to fraction form
    657,957.15/987,029.87 = 202,586.92/x
  3. Step 3: Cross multiply
    657,957.15x = 987,029.87 × 202,586.92
  4. Step 4: Simplify right side
    657,957.15x = 199,959,337,830.79
  5. Step 5: Solve for x
    x = 199,959,337,830.79/657,957.15
  6. Step 6: Final answer
    x = 303,909.36

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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.