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Finding the Fourth Proportional to 580,577.31, 870,920.91 and 225,618.69

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Solution

The fourth proportional to 580,577.31, 870,920.91 and 225,618.69 is: 338,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,577.31 : 870,920.91 = 225,618.69 : x
  2. Step 2: Convert to fraction form
    580,577.31/870,920.91 = 225,618.69/x
  3. Step 3: Cross multiply
    580,577.31x = 870,920.91 × 225,618.69
  4. Step 4: Simplify right side
    580,577.31x = 196,496,034,807.81
  5. Step 5: Solve for x
    x = 196,496,034,807.81/580,577.31
  6. Step 6: Final answer
    x = 338,449.39

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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.