Home / 801,298.04-1,105,791.35-438,721.92

Finding the Fourth Proportional to 801,298.04, 1,105,791.35 and 438,721.92

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Solution

The fourth proportional to 801,298.04, 1,105,791.35 and 438,721.92 is: 605,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,298.04 : 1,105,791.35 = 438,721.92 : x
  2. Step 2: Convert to fraction form
    801,298.04/1,105,791.35 = 438,721.92/x
  3. Step 3: Cross multiply
    801,298.04x = 1,105,791.35 × 438,721.92
  4. Step 4: Simplify right side
    801,298.04x = 485,134,901,997.78
  5. Step 5: Solve for x
    x = 485,134,901,997.78/801,298.04
  6. Step 6: Final answer
    x = 605,436.28

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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.