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Finding the Fourth Proportional to 526,447.08, 789,726.31 and 171,488.88

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Solution

The fourth proportional to 526,447.08, 789,726.31 and 171,488.88 is: 257,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,447.08 : 789,726.31 = 171,488.88 : x
  2. Step 2: Convert to fraction form
    526,447.08/789,726.31 = 171,488.88/x
  3. Step 3: Cross multiply
    526,447.08x = 789,726.31 × 171,488.88
  4. Step 4: Simplify right side
    526,447.08x = 135,429,279,979.71
  5. Step 5: Solve for x
    x = 135,429,279,979.71/526,447.08
  6. Step 6: Final answer
    x = 257,251.46

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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.