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Finding the Fourth Proportional to 526,390.08, 789,691.74 and 171,308.76

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Solution

The fourth proportional to 526,390.08, 789,691.74 and 171,308.76 is: 256,997.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,390.08 : 789,691.74 = 171,308.76 : x
  2. Step 2: Convert to fraction form
    526,390.08/789,691.74 = 171,308.76/x
  3. Step 3: Cross multiply
    526,390.08x = 789,691.74 × 171,308.76
  4. Step 4: Simplify right side
    526,390.08x = 135,281,112,761.64
  5. Step 5: Solve for x
    x = 135,281,112,761.64/526,390.08
  6. Step 6: Final answer
    x = 256,997.84

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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.