Home / 752,450.20-1,128,675.30-433,585.60

Finding the Fourth Proportional to 752,450.20, 1,128,675.30 and 433,585.60

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Solution

The fourth proportional to 752,450.20, 1,128,675.30 and 433,585.60 is: 650,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,450.20 : 1,128,675.30 = 433,585.60 : x
  2. Step 2: Convert to fraction form
    752,450.20/1,128,675.30 = 433,585.60/x
  3. Step 3: Cross multiply
    752,450.20x = 1,128,675.30 × 433,585.60
  4. Step 4: Simplify right side
    752,450.20x = 489,377,357,155.68
  5. Step 5: Solve for x
    x = 489,377,357,155.68/752,450.20
  6. Step 6: Final answer
    x = 650,378.40

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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.