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Finding the Fourth Proportional to 580,327.48, 870,737.28 and 281,031.06

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Solution

The fourth proportional to 580,327.48, 870,737.28 and 281,031.06 is: 421,665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,327.48 : 870,737.28 = 281,031.06 : x
  2. Step 2: Convert to fraction form
    580,327.48/870,737.28 = 281,031.06/x
  3. Step 3: Cross multiply
    580,327.48x = 870,737.28 × 281,031.06
  4. Step 4: Simplify right side
    580,327.48x = 244,704,220,779.92
  5. Step 5: Solve for x
    x = 244,704,220,779.92/580,327.48
  6. Step 6: Final answer
    x = 421,665.75

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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.