Home / 715,025.04-986,759.73-392,764.92

Finding the Fourth Proportional to 715,025.04, 986,759.73 and 392,764.92

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Solution

The fourth proportional to 715,025.04, 986,759.73 and 392,764.92 is: 542,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,025.04 : 986,759.73 = 392,764.92 : x
  2. Step 2: Convert to fraction form
    715,025.04/986,759.73 = 392,764.92/x
  3. Step 3: Cross multiply
    715,025.04x = 986,759.73 × 392,764.92
  4. Step 4: Simplify right side
    715,025.04x = 387,564,606,412.67
  5. Step 5: Solve for x
    x = 387,564,606,412.67/715,025.04
  6. Step 6: Final answer
    x = 542,029.42

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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.