Home / 721,062.30-1,081,265.40-384,016.44

Finding the Fourth Proportional to 721,062.30, 1,081,265.40 and 384,016.44

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Solution

The fourth proportional to 721,062.30, 1,081,265.40 and 384,016.44 is: 575,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,062.30 : 1,081,265.40 = 384,016.44 : x
  2. Step 2: Convert to fraction form
    721,062.30/1,081,265.40 = 384,016.44/x
  3. Step 3: Cross multiply
    721,062.30x = 1,081,265.40 × 384,016.44
  4. Step 4: Simplify right side
    721,062.30x = 415,223,689,603.18
  5. Step 5: Solve for x
    x = 415,223,689,603.18/721,062.30
  6. Step 6: Final answer
    x = 575,849.95

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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.