Home / 725,614.80-1,000,939.68-435,148.92

Finding the Fourth Proportional to 725,614.80, 1,000,939.68 and 435,148.92

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Solution

The fourth proportional to 725,614.80, 1,000,939.68 and 435,148.92 is: 600,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,614.80 : 1,000,939.68 = 435,148.92 : x
  2. Step 2: Convert to fraction form
    725,614.80/1,000,939.68 = 435,148.92/x
  3. Step 3: Cross multiply
    725,614.80x = 1,000,939.68 × 435,148.92
  4. Step 4: Simplify right side
    725,614.80x = 435,557,820,737.15
  5. Step 5: Solve for x
    x = 435,557,820,737.15/725,614.80
  6. Step 6: Final answer
    x = 600,260.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.