Home / 753,449.50-1,039,760.72-413,939.62

Finding the Fourth Proportional to 753,449.50, 1,039,760.72 and 413,939.62

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Solution

The fourth proportional to 753,449.50, 1,039,760.72 and 413,939.62 is: 571,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,449.50 : 1,039,760.72 = 413,939.62 : x
  2. Step 2: Convert to fraction form
    753,449.50/1,039,760.72 = 413,939.62/x
  3. Step 3: Cross multiply
    753,449.50x = 1,039,760.72 × 413,939.62
  4. Step 4: Simplify right side
    753,449.50x = 430,398,157,327.73
  5. Step 5: Solve for x
    x = 430,398,157,327.73/753,449.50
  6. Step 6: Final answer
    x = 571,236.90

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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.