Home / 591,219.27-815,882.55-319,287.18

Finding the Fourth Proportional to 591,219.27, 815,882.55 and 319,287.18

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Solution

The fourth proportional to 591,219.27, 815,882.55 and 319,287.18 is: 440,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,219.27 : 815,882.55 = 319,287.18 : x
  2. Step 2: Convert to fraction form
    591,219.27/815,882.55 = 319,287.18/x
  3. Step 3: Cross multiply
    591,219.27x = 815,882.55 × 319,287.18
  4. Step 4: Simplify right side
    591,219.27x = 260,500,838,600.71
  5. Step 5: Solve for x
    x = 260,500,838,600.71/591,219.27
  6. Step 6: Final answer
    x = 440,616.29

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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.