Home / 752,121.60-1,129,348.80-437,193.60

Finding the Fourth Proportional to 752,121.60, 1,129,348.80 and 437,193.60

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Solution

The fourth proportional to 752,121.60, 1,129,348.80 and 437,193.60 is: 656,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,121.60 : 1,129,348.80 = 437,193.60 : x
  2. Step 2: Convert to fraction form
    752,121.60/1,129,348.80 = 437,193.60/x
  3. Step 3: Cross multiply
    752,121.60x = 1,129,348.80 × 437,193.60
  4. Step 4: Simplify right side
    752,121.60x = 493,744,067,527.68
  5. Step 5: Solve for x
    x = 493,744,067,527.68/752,121.60
  6. Step 6: Final answer
    x = 656,468.41

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1.5x scale

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.