Home / 885,721.66-1,221,874.92-522,902.45

Finding the Fourth Proportional to 885,721.66, 1,221,874.92 and 522,902.45

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Solution

The fourth proportional to 885,721.66, 1,221,874.92 and 522,902.45 is: 721,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,721.66 : 1,221,874.92 = 522,902.45 : x
  2. Step 2: Convert to fraction form
    885,721.66/1,221,874.92 = 522,902.45/x
  3. Step 3: Cross multiply
    885,721.66x = 1,221,874.92 × 522,902.45
  4. Step 4: Simplify right side
    885,721.66x = 638,921,392,316.24
  5. Step 5: Solve for x
    x = 638,921,392,316.24/885,721.66
  6. Step 6: Final answer
    x = 721,356.86

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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.