Home / 1,333,401.12-1,840,079.28-721,540.44

Finding the Fourth Proportional to 1,333,401.12, 1,840,079.28 and 721,540.44

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Solution

The fourth proportional to 1,333,401.12, 1,840,079.28 and 721,540.44 is: 995,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,401.12 : 1,840,079.28 = 721,540.44 : x
  2. Step 2: Convert to fraction form
    1,333,401.12/1,840,079.28 = 721,540.44/x
  3. Step 3: Cross multiply
    1,333,401.12x = 1,840,079.28 × 721,540.44
  4. Step 4: Simplify right side
    1,333,401.12x = 1,327,691,613,326.08
  5. Step 5: Solve for x
    x = 1,327,691,613,326.08/1,333,401.12
  6. Step 6: Final answer
    x = 995,718.09

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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.