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Finding the Fourth Proportional to 576,620.56, 864,930.84 and 261,070.48

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Solution

The fourth proportional to 576,620.56, 864,930.84 and 261,070.48 is: 391,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,620.56 : 864,930.84 = 261,070.48 : x
  2. Step 2: Convert to fraction form
    576,620.56/864,930.84 = 261,070.48/x
  3. Step 3: Cross multiply
    576,620.56x = 864,930.84 × 261,070.48
  4. Step 4: Simplify right side
    576,620.56x = 225,807,909,565.60
  5. Step 5: Solve for x
    x = 225,807,909,565.60/576,620.56
  6. Step 6: Final answer
    x = 391,605.72

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Similar ratio
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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.