Home / 1,432,184.82-1,976,465.77-787,654.90

Finding the Fourth Proportional to 1,432,184.82, 1,976,465.77 and 787,654.90

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Solution

The fourth proportional to 1,432,184.82, 1,976,465.77 and 787,654.90 is: 1,086,991.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,184.82 : 1,976,465.77 = 787,654.90 : x
  2. Step 2: Convert to fraction form
    1,432,184.82/1,976,465.77 = 787,654.90/x
  3. Step 3: Cross multiply
    1,432,184.82x = 1,976,465.77 × 787,654.90
  4. Step 4: Simplify right side
    1,432,184.82x = 1,556,772,948,422.77
  5. Step 5: Solve for x
    x = 1,556,772,948,422.77/1,432,184.82
  6. Step 6: Final answer
    x = 1,086,991.66

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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.