Home / 764,235.60-1,146,353.40-752,425.80

Finding the Fourth Proportional to 764,235.60, 1,146,353.40 and 752,425.80

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Solution

The fourth proportional to 764,235.60, 1,146,353.40 and 752,425.80 is: 1,128,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,235.60 : 1,146,353.40 = 752,425.80 : x
  2. Step 2: Convert to fraction form
    764,235.60/1,146,353.40 = 752,425.80/x
  3. Step 3: Cross multiply
    764,235.60x = 1,146,353.40 × 752,425.80
  4. Step 4: Simplify right side
    764,235.60x = 862,545,874,077.72
  5. Step 5: Solve for x
    x = 862,545,874,077.72/764,235.60
  6. Step 6: Final answer
    x = 1,128,638.70

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Double scale
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Similar ratio
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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.