Home / 1,238,920.12-1,859,057.25-480,791.44

Finding the Fourth Proportional to 1,238,920.12, 1,859,057.25 and 480,791.44

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Solution

The fourth proportional to 1,238,920.12, 1,859,057.25 and 480,791.44 is: 721,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,920.12 : 1,859,057.25 = 480,791.44 : x
  2. Step 2: Convert to fraction form
    1,238,920.12/1,859,057.25 = 480,791.44/x
  3. Step 3: Cross multiply
    1,238,920.12x = 1,859,057.25 × 480,791.44
  4. Step 4: Simplify right side
    1,238,920.12x = 893,818,812,269.94
  5. Step 5: Solve for x
    x = 893,818,812,269.94/1,238,920.12
  6. Step 6: Final answer
    x = 721,449.91

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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.