Home / 658,285.97-987,428.86-231,721.34

Finding the Fourth Proportional to 658,285.97, 987,428.86 and 231,721.34

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Solution

The fourth proportional to 658,285.97, 987,428.86 and 231,721.34 is: 347,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,285.97 : 987,428.86 = 231,721.34 : x
  2. Step 2: Convert to fraction form
    658,285.97/987,428.86 = 231,721.34/x
  3. Step 3: Cross multiply
    658,285.97x = 987,428.86 × 231,721.34
  4. Step 4: Simplify right side
    658,285.97x = 228,808,333,077.43
  5. Step 5: Solve for x
    x = 228,808,333,077.43/658,285.97
  6. Step 6: Final answer
    x = 347,581.97

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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.