Home / 725,423.10-1,088,134.65-651,939.90

Finding the Fourth Proportional to 725,423.10, 1,088,134.65 and 651,939.90

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Solution

The fourth proportional to 725,423.10, 1,088,134.65 and 651,939.90 is: 977,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,423.10 : 1,088,134.65 = 651,939.90 : x
  2. Step 2: Convert to fraction form
    725,423.10/1,088,134.65 = 651,939.90/x
  3. Step 3: Cross multiply
    725,423.10x = 1,088,134.65 × 651,939.90
  4. Step 4: Simplify right side
    725,423.10x = 709,398,394,907.54
  5. Step 5: Solve for x
    x = 709,398,394,907.54/725,423.10
  6. Step 6: Final answer
    x = 977,909.85

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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.