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Finding the Fourth Proportional to 619,645.60, 929,468.40 and 582,320.80

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Solution

The fourth proportional to 619,645.60, 929,468.40 and 582,320.80 is: 873,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,645.60 : 929,468.40 = 582,320.80 : x
  2. Step 2: Convert to fraction form
    619,645.60/929,468.40 = 582,320.80/x
  3. Step 3: Cross multiply
    619,645.60x = 929,468.40 × 582,320.80
  4. Step 4: Simplify right side
    619,645.60x = 541,248,782,262.72
  5. Step 5: Solve for x
    x = 541,248,782,262.72/619,645.60
  6. Step 6: Final answer
    x = 873,481.20

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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.