Home / 1,432,238.22-1,976,449.28-787,658.40

Finding the Fourth Proportional to 1,432,238.22, 1,976,449.28 and 787,658.40

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Solution

The fourth proportional to 1,432,238.22, 1,976,449.28 and 787,658.40 is: 1,086,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,238.22 : 1,976,449.28 = 787,658.40 : x
  2. Step 2: Convert to fraction form
    1,432,238.22/1,976,449.28 = 787,658.40/x
  3. Step 3: Cross multiply
    1,432,238.22x = 1,976,449.28 × 787,658.40
  4. Step 4: Simplify right side
    1,432,238.22x = 1,556,766,873,627.66
  5. Step 5: Solve for x
    x = 1,556,766,873,627.66/1,432,238.22
  6. Step 6: Final answer
    x = 1,086,946.89

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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.