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Finding the Fourth Proportional to 580,013.78, 870,337.78 and 225,041.81

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Solution

The fourth proportional to 580,013.78, 870,337.78 and 225,041.81 is: 337,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,013.78 : 870,337.78 = 225,041.81 : x
  2. Step 2: Convert to fraction form
    580,013.78/870,337.78 = 225,041.81/x
  3. Step 3: Cross multiply
    580,013.78x = 870,337.78 × 225,041.81
  4. Step 4: Simplify right side
    580,013.78x = 195,862,384,408.29
  5. Step 5: Solve for x
    x = 195,862,384,408.29/580,013.78
  6. Step 6: Final answer
    x = 337,685.75

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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.