Home / 764,279.60-1,146,419.40-752,469.80

Finding the Fourth Proportional to 764,279.60, 1,146,419.40 and 752,469.80

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Solution

The fourth proportional to 764,279.60, 1,146,419.40 and 752,469.80 is: 1,128,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,279.60 : 1,146,419.40 = 752,469.80 : x
  2. Step 2: Convert to fraction form
    764,279.60/1,146,419.40 = 752,469.80/x
  3. Step 3: Cross multiply
    764,279.60x = 1,146,419.40 × 752,469.80
  4. Step 4: Simplify right side
    764,279.60x = 862,645,976,634.12
  5. Step 5: Solve for x
    x = 862,645,976,634.12/764,279.60
  6. Step 6: Final answer
    x = 1,128,704.70

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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.