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Finding the Fourth Proportional to 752,854.40, 1,130,156.40 and 453,672.80

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Solution

The fourth proportional to 752,854.40, 1,130,156.40 and 453,672.80 is: 681,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,854.40 : 1,130,156.40 = 453,672.80 : x
  2. Step 2: Convert to fraction form
    752,854.40/1,130,156.40 = 453,672.80/x
  3. Step 3: Cross multiply
    752,854.40x = 1,130,156.40 × 453,672.80
  4. Step 4: Simplify right side
    752,854.40x = 512,721,218,425.92
  5. Step 5: Solve for x
    x = 512,721,218,425.92/752,854.40
  6. Step 6: Final answer
    x = 681,036.36

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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.