Home / 668,618.72-1,002,961.56-219,299.84

Finding the Fourth Proportional to 668,618.72, 1,002,961.56 and 219,299.84

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Solution

The fourth proportional to 668,618.72, 1,002,961.56 and 219,299.84 is: 328,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,618.72 : 1,002,961.56 = 219,299.84 : x
  2. Step 2: Convert to fraction form
    668,618.72/1,002,961.56 = 219,299.84/x
  3. Step 3: Cross multiply
    668,618.72x = 1,002,961.56 × 219,299.84
  4. Step 4: Simplify right side
    668,618.72x = 219,949,309,634.15
  5. Step 5: Solve for x
    x = 219,949,309,634.15/668,618.72
  6. Step 6: Final answer
    x = 328,960.74

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1.5x scale

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.