Home / 658,428.30-908,704.80-371,966.85

Finding the Fourth Proportional to 658,428.30, 908,704.80 and 371,966.85

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Solution

The fourth proportional to 658,428.30, 908,704.80 and 371,966.85 is: 513,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,428.30 : 908,704.80 = 371,966.85 : x
  2. Step 2: Convert to fraction form
    658,428.30/908,704.80 = 371,966.85/x
  3. Step 3: Cross multiply
    658,428.30x = 908,704.80 × 371,966.85
  4. Step 4: Simplify right side
    658,428.30x = 338,008,062,035.88
  5. Step 5: Solve for x
    x = 338,008,062,035.88/658,428.30
  6. Step 6: Final answer
    x = 513,355.91

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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.