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Finding the Fourth Proportional to 637.64, 880.46 and 519.63

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Solution

The fourth proportional to 637.64, 880.46 and 519.63 is: 717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.64 : 880.46 = 519.63 : x
  2. Step 2: Convert to fraction form
    637.64/880.46 = 519.63/x
  3. Step 3: Cross multiply
    637.64x = 880.46 × 519.63
  4. Step 4: Simplify right side
    637.64x = 457,507.53
  5. Step 5: Solve for x
    x = 457,507.53/637.64
  6. Step 6: Final answer
    x = 717.51

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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.