Home / 1,125,470.91-1,687,680.90-405,717.83

Finding the Fourth Proportional to 1,125,470.91, 1,687,680.90 and 405,717.83

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Solution

The fourth proportional to 1,125,470.91, 1,687,680.90 and 405,717.83 is: 608,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,470.91 : 1,687,680.90 = 405,717.83 : x
  2. Step 2: Convert to fraction form
    1,125,470.91/1,687,680.90 = 405,717.83/x
  3. Step 3: Cross multiply
    1,125,470.91x = 1,687,680.90 × 405,717.83
  4. Step 4: Simplify right side
    1,125,470.91x = 684,722,224,042.04
  5. Step 5: Solve for x
    x = 684,722,224,042.04/1,125,470.91
  6. Step 6: Final answer
    x = 608,387.31

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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.