Home / 668,781.12-1,002,960.95-219,397.27

Finding the Fourth Proportional to 668,781.12, 1,002,960.95 and 219,397.27

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Solution

The fourth proportional to 668,781.12, 1,002,960.95 and 219,397.27 is: 329,026.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,781.12 : 1,002,960.95 = 219,397.27 : x
  2. Step 2: Convert to fraction form
    668,781.12/1,002,960.95 = 219,397.27/x
  3. Step 3: Cross multiply
    668,781.12x = 1,002,960.95 × 219,397.27
  4. Step 4: Simplify right side
    668,781.12x = 220,046,890,742.22
  5. Step 5: Solve for x
    x = 220,046,890,742.22/668,781.12
  6. Step 6: Final answer
    x = 329,026.77

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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.