Home / 1,387,110.30-2,080,665.45-722,175.90

Finding the Fourth Proportional to 1,387,110.30, 2,080,665.45 and 722,175.90

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Solution

The fourth proportional to 1,387,110.30, 2,080,665.45 and 722,175.90 is: 1,083,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,110.30 : 2,080,665.45 = 722,175.90 : x
  2. Step 2: Convert to fraction form
    1,387,110.30/2,080,665.45 = 722,175.90/x
  3. Step 3: Cross multiply
    1,387,110.30x = 2,080,665.45 × 722,175.90
  4. Step 4: Simplify right side
    1,387,110.30x = 1,502,606,443,952.66
  5. Step 5: Solve for x
    x = 1,502,606,443,952.66/1,387,110.30
  6. Step 6: Final answer
    x = 1,083,263.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.