Home / 1,333,253.91-1,839,885.31-721,407.85

Finding the Fourth Proportional to 1,333,253.91, 1,839,885.31 and 721,407.85

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Solution

The fourth proportional to 1,333,253.91, 1,839,885.31 and 721,407.85 is: 995,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,253.91 : 1,839,885.31 = 721,407.85 : x
  2. Step 2: Convert to fraction form
    1,333,253.91/1,839,885.31 = 721,407.85/x
  3. Step 3: Cross multiply
    1,333,253.91x = 1,839,885.31 × 721,407.85
  4. Step 4: Simplify right side
    1,333,253.91x = 1,327,307,710,356.13
  5. Step 5: Solve for x
    x = 1,327,307,710,356.13/1,333,253.91
  6. Step 6: Final answer
    x = 995,540.09

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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.