Home / 658,123.40-987,645.90-284,414.60

Finding the Fourth Proportional to 658,123.40, 987,645.90 and 284,414.60

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Solution

The fourth proportional to 658,123.40, 987,645.90 and 284,414.60 is: 426,821.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,123.40 : 987,645.90 = 284,414.60 : x
  2. Step 2: Convert to fraction form
    658,123.40/987,645.90 = 284,414.60/x
  3. Step 3: Cross multiply
    658,123.40x = 987,645.90 × 284,414.60
  4. Step 4: Simplify right side
    658,123.40x = 280,900,913,590.14
  5. Step 5: Solve for x
    x = 280,900,913,590.14/658,123.40
  6. Step 6: Final answer
    x = 426,821.04

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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.