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Finding the Fourth Proportional to 580,689.68, 870,835.91 and 220,773.74

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Solution

The fourth proportional to 580,689.68, 870,835.91 and 220,773.74 is: 331,085.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,689.68 : 870,835.91 = 220,773.74 : x
  2. Step 2: Convert to fraction form
    580,689.68/870,835.91 = 220,773.74/x
  3. Step 3: Cross multiply
    580,689.68x = 870,835.91 × 220,773.74
  4. Step 4: Simplify right side
    580,689.68x = 192,257,695,318.96
  5. Step 5: Solve for x
    x = 192,257,695,318.96/580,689.68
  6. Step 6: Final answer
    x = 331,085.09

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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.