Home / 1,333,456.64-1,840,170.10-721,609.42

Finding the Fourth Proportional to 1,333,456.64, 1,840,170.10 and 721,609.42

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Solution

The fourth proportional to 1,333,456.64, 1,840,170.10 and 721,609.42 is: 995,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,456.64 : 1,840,170.10 = 721,609.42 : x
  2. Step 2: Convert to fraction form
    1,333,456.64/1,840,170.10 = 721,609.42/x
  3. Step 3: Cross multiply
    1,333,456.64x = 1,840,170.10 × 721,609.42
  4. Step 4: Simplify right side
    1,333,456.64x = 1,327,884,078,562.34
  5. Step 5: Solve for x
    x = 1,327,884,078,562.34/1,333,456.64
  6. Step 6: Final answer
    x = 995,820.97

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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.