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Finding the Fourth Proportional to 688.75, 950.05 and 452.73

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Solution

The fourth proportional to 688.75, 950.05 and 452.73 is: 624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    688.75 : 950.05 = 452.73 : x
  2. Step 2: Convert to fraction form
    688.75/950.05 = 452.73/x
  3. Step 3: Cross multiply
    688.75x = 950.05 × 452.73
  4. Step 4: Simplify right side
    688.75x = 430,116.14
  5. Step 5: Solve for x
    x = 430,116.14/688.75
  6. Step 6: Final answer
    x = 624.49

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1.5x scale

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.