Home / 1,494,781.12-2,062,841.76-815,761.28

Finding the Fourth Proportional to 1,494,781.12, 2,062,841.76 and 815,761.28

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Solution

The fourth proportional to 1,494,781.12, 2,062,841.76 and 815,761.28 is: 1,125,774.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494,781.12 : 2,062,841.76 = 815,761.28 : x
  2. Step 2: Convert to fraction form
    1,494,781.12/2,062,841.76 = 815,761.28/x
  3. Step 3: Cross multiply
    1,494,781.12x = 2,062,841.76 × 815,761.28
  4. Step 4: Simplify right side
    1,494,781.12x = 1,682,786,434,575.05
  5. Step 5: Solve for x
    x = 1,682,786,434,575.05/1,494,781.12
  6. Step 6: Final answer
    x = 1,125,774.48

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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.