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Finding the Fourth Proportional to 605,672.60, 908,711.10 and 268,666.76

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Solution

The fourth proportional to 605,672.60, 908,711.10 and 268,666.76 is: 403,089.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,672.60 : 908,711.10 = 268,666.76 : x
  2. Step 2: Convert to fraction form
    605,672.60/908,711.10 = 268,666.76/x
  3. Step 3: Cross multiply
    605,672.60x = 908,711.10 × 268,666.76
  4. Step 4: Simplify right side
    605,672.60x = 244,140,467,013.04
  5. Step 5: Solve for x
    x = 244,140,467,013.04/605,672.60
  6. Step 6: Final answer
    x = 403,089.83

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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.