Home / 801,288.48-1,105,736.04-438,642.86

Finding the Fourth Proportional to 801,288.48, 1,105,736.04 and 438,642.86

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Solution

The fourth proportional to 801,288.48, 1,105,736.04 and 438,642.86 is: 605,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,288.48 : 1,105,736.04 = 438,642.86 : x
  2. Step 2: Convert to fraction form
    801,288.48/1,105,736.04 = 438,642.86/x
  3. Step 3: Cross multiply
    801,288.48x = 1,105,736.04 × 438,642.86
  4. Step 4: Simplify right side
    801,288.48x = 485,023,218,990.67
  5. Step 5: Solve for x
    x = 485,023,218,990.67/801,288.48
  6. Step 6: Final answer
    x = 605,304.12

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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.