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Finding the Fourth Proportional to 580,687.61, 870,699.11 and 225,286.74

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Solution

The fourth proportional to 580,687.61, 870,699.11 and 225,286.74 is: 337,801.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,687.61 : 870,699.11 = 225,286.74 : x
  2. Step 2: Convert to fraction form
    580,687.61/870,699.11 = 225,286.74/x
  3. Step 3: Cross multiply
    580,687.61x = 870,699.11 × 225,286.74
  4. Step 4: Simplify right side
    580,687.61x = 196,156,962,886.37
  5. Step 5: Solve for x
    x = 196,156,962,886.37/580,687.61
  6. Step 6: Final answer
    x = 337,801.19

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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.