Home / 386,470.20-579,446.10-175,999.80

Finding the Fourth Proportional to 386,470.20, 579,446.10 and 175,999.80

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Solution

The fourth proportional to 386,470.20, 579,446.10 and 175,999.80 is: 263,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,470.20 : 579,446.10 = 175,999.80 : x
  2. Step 2: Convert to fraction form
    386,470.20/579,446.10 = 175,999.80/x
  3. Step 3: Cross multiply
    386,470.20x = 579,446.10 × 175,999.80
  4. Step 4: Simplify right side
    386,470.20x = 101,982,397,710.78
  5. Step 5: Solve for x
    x = 101,982,397,710.78/386,470.20
  6. Step 6: Final answer
    x = 263,881.66

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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.