Home / 801,322.78-1,105,791.24-438,740.04

Finding the Fourth Proportional to 801,322.78, 1,105,791.24 and 438,740.04

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Solution

The fourth proportional to 801,322.78, 1,105,791.24 and 438,740.04 is: 605,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,322.78 : 1,105,791.24 = 438,740.04 : x
  2. Step 2: Convert to fraction form
    801,322.78/1,105,791.24 = 438,740.04/x
  3. Step 3: Cross multiply
    801,322.78x = 1,105,791.24 × 438,740.04
  4. Step 4: Simplify right side
    801,322.78x = 485,154,892,869.25
  5. Step 5: Solve for x
    x = 485,154,892,869.25/801,322.78
  6. Step 6: Final answer
    x = 605,442.53

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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.