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Finding the Fourth Proportional to 488.95, 675.53 and 452.05

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Solution

The fourth proportional to 488.95, 675.53 and 452.05 is: 624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.95 : 675.53 = 452.05 : x
  2. Step 2: Convert to fraction form
    488.95/675.53 = 452.05/x
  3. Step 3: Cross multiply
    488.95x = 675.53 × 452.05
  4. Step 4: Simplify right side
    488.95x = 305,373.34
  5. Step 5: Solve for x
    x = 305,373.34/488.95
  6. Step 6: Final answer
    x = 624.55

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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.