Home / 1,231,397.72-1,699,612.28-722,264.12

Finding the Fourth Proportional to 1,231,397.72, 1,699,612.28 and 722,264.12

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Solution

The fourth proportional to 1,231,397.72, 1,699,612.28 and 722,264.12 is: 996,890.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,397.72 : 1,699,612.28 = 722,264.12 : x
  2. Step 2: Convert to fraction form
    1,231,397.72/1,699,612.28 = 722,264.12/x
  3. Step 3: Cross multiply
    1,231,397.72x = 1,699,612.28 × 722,264.12
  4. Step 4: Simplify right side
    1,231,397.72x = 1,227,568,967,755.39
  5. Step 5: Solve for x
    x = 1,227,568,967,755.39/1,231,397.72
  6. Step 6: Final answer
    x = 996,890.73

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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.