Home / 668,781.62-1,002,961.70-219,397.77

Finding the Fourth Proportional to 668,781.62, 1,002,961.70 and 219,397.77

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Solution

The fourth proportional to 668,781.62, 1,002,961.70 and 219,397.77 is: 329,027.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,781.62 : 1,002,961.70 = 219,397.77 : x
  2. Step 2: Convert to fraction form
    668,781.62/1,002,961.70 = 219,397.77/x
  3. Step 3: Cross multiply
    668,781.62x = 1,002,961.70 × 219,397.77
  4. Step 4: Simplify right side
    668,781.62x = 220,047,559,278.42
  5. Step 5: Solve for x
    x = 220,047,559,278.42/668,781.62
  6. Step 6: Final answer
    x = 329,027.52

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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.