Home / 885,721.25-1,221,874.34-522,902.04

Finding the Fourth Proportional to 885,721.25, 1,221,874.34 and 522,902.04

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Solution

The fourth proportional to 885,721.25, 1,221,874.34 and 522,902.04 is: 721,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,721.25 : 1,221,874.34 = 522,902.04 : x
  2. Step 2: Convert to fraction form
    885,721.25/1,221,874.34 = 522,902.04/x
  3. Step 3: Cross multiply
    885,721.25x = 1,221,874.34 × 522,902.04
  4. Step 4: Simplify right side
    885,721.25x = 638,920,582,395.14
  5. Step 5: Solve for x
    x = 638,920,582,395.14/885,721.25
  6. Step 6: Final answer
    x = 721,356.28

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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.