Home / 605,385.18-907,654.95-268,242.75

Finding the Fourth Proportional to 605,385.18, 907,654.95 and 268,242.75

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Solution

The fourth proportional to 605,385.18, 907,654.95 and 268,242.75 is: 402,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,385.18 : 907,654.95 = 268,242.75 : x
  2. Step 2: Convert to fraction form
    605,385.18/907,654.95 = 268,242.75/x
  3. Step 3: Cross multiply
    605,385.18x = 907,654.95 × 268,242.75
  4. Step 4: Simplify right side
    605,385.18x = 243,471,859,839.11
  5. Step 5: Solve for x
    x = 243,471,859,839.11/605,385.18
  6. Step 6: Final answer
    x = 402,176.78

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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.