Home / 693,437.40-1,040,156.10-587,149.20

Finding the Fourth Proportional to 693,437.40, 1,040,156.10 and 587,149.20

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Solution

The fourth proportional to 693,437.40, 1,040,156.10 and 587,149.20 is: 880,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,437.40 : 1,040,156.10 = 587,149.20 : x
  2. Step 2: Convert to fraction form
    693,437.40/1,040,156.10 = 587,149.20/x
  3. Step 3: Cross multiply
    693,437.40x = 1,040,156.10 × 587,149.20
  4. Step 4: Simplify right side
    693,437.40x = 610,726,821,990.12
  5. Step 5: Solve for x
    x = 610,726,821,990.12/693,437.40
  6. Step 6: Final answer
    x = 880,723.80

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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.