Home / 726,737.60-1,090,754.40-426,843.20

Finding the Fourth Proportional to 726,737.60, 1,090,754.40 and 426,843.20

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Solution

The fourth proportional to 726,737.60, 1,090,754.40 and 426,843.20 is: 640,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,737.60 : 1,090,754.40 = 426,843.20 : x
  2. Step 2: Convert to fraction form
    726,737.60/1,090,754.40 = 426,843.20/x
  3. Step 3: Cross multiply
    726,737.60x = 1,090,754.40 × 426,843.20
  4. Step 4: Simplify right side
    726,737.60x = 465,581,098,510.08
  5. Step 5: Solve for x
    x = 465,581,098,510.08/726,737.60
  6. Step 6: Final answer
    x = 640,645.40

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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.