Home / 668,780.41-1,002,959.88-219,396.56

Finding the Fourth Proportional to 668,780.41, 1,002,959.88 and 219,396.56

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Solution

The fourth proportional to 668,780.41, 1,002,959.88 and 219,396.56 is: 329,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,780.41 : 1,002,959.88 = 219,396.56 : x
  2. Step 2: Convert to fraction form
    668,780.41/1,002,959.88 = 219,396.56/x
  3. Step 3: Cross multiply
    668,780.41x = 1,002,959.88 × 219,396.56
  4. Step 4: Simplify right side
    668,780.41x = 220,045,942,475.21
  5. Step 5: Solve for x
    x = 220,045,942,475.21/668,780.41
  6. Step 6: Final answer
    x = 329,025.70

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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.