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Finding the Fourth Proportional to 580,325.60, 870,388.14 and 153,864.38

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Solution

The fourth proportional to 580,325.60, 870,388.14 and 153,864.38 is: 230,769.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,325.60 : 870,388.14 = 153,864.38 : x
  2. Step 2: Convert to fraction form
    580,325.60/870,388.14 = 153,864.38/x
  3. Step 3: Cross multiply
    580,325.60x = 870,388.14 × 153,864.38
  4. Step 4: Simplify right side
    580,325.60x = 133,921,731,520.45
  5. Step 5: Solve for x
    x = 133,921,731,520.45/580,325.60
  6. Step 6: Final answer
    x = 230,769.99

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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.