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Finding the Fourth Proportional to 627,780.60, 940,634.10 and 534,468.60

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Solution

The fourth proportional to 627,780.60, 940,634.10 and 534,468.60 is: 800,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,780.60 : 940,634.10 = 534,468.60 : x
  2. Step 2: Convert to fraction form
    627,780.60/940,634.10 = 534,468.60/x
  3. Step 3: Cross multiply
    627,780.60x = 940,634.10 × 534,468.60
  4. Step 4: Simplify right side
    627,780.60x = 502,739,390,539.26
  5. Step 5: Solve for x
    x = 502,739,390,539.26/627,780.60
  6. Step 6: Final answer
    x = 800,820.21

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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.