Home / 723,769.20-1,086,690.60-408,841.20

Finding the Fourth Proportional to 723,769.20, 1,086,690.60 and 408,841.20

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Solution

The fourth proportional to 723,769.20, 1,086,690.60 and 408,841.20 is: 613,847.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,769.20 : 1,086,690.60 = 408,841.20 : x
  2. Step 2: Convert to fraction form
    723,769.20/1,086,690.60 = 408,841.20/x
  3. Step 3: Cross multiply
    723,769.20x = 1,086,690.60 × 408,841.20
  4. Step 4: Simplify right side
    723,769.20x = 444,283,888,932.72
  5. Step 5: Solve for x
    x = 444,283,888,932.72/723,769.20
  6. Step 6: Final answer
    x = 613,847.47

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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.