Home / 752,449.20-1,128,673.80-433,584.60

Finding the Fourth Proportional to 752,449.20, 1,128,673.80 and 433,584.60

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Solution

The fourth proportional to 752,449.20, 1,128,673.80 and 433,584.60 is: 650,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,449.20 : 1,128,673.80 = 433,584.60 : x
  2. Step 2: Convert to fraction form
    752,449.20/1,128,673.80 = 433,584.60/x
  3. Step 3: Cross multiply
    752,449.20x = 1,128,673.80 × 433,584.60
  4. Step 4: Simplify right side
    752,449.20x = 489,375,578,103.48
  5. Step 5: Solve for x
    x = 489,375,578,103.48/752,449.20
  6. Step 6: Final answer
    x = 650,376.90

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Half scale
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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.