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Finding the Fourth Proportional to 635.49, 877.20 and 414.75

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Solution

The fourth proportional to 635.49, 877.20 and 414.75 is: 572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.49 : 877.20 = 414.75 : x
  2. Step 2: Convert to fraction form
    635.49/877.20 = 414.75/x
  3. Step 3: Cross multiply
    635.49x = 877.20 × 414.75
  4. Step 4: Simplify right side
    635.49x = 363,818.70
  5. Step 5: Solve for x
    x = 363,818.70/635.49
  6. Step 6: Final answer
    x = 572.50

Related Problems

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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.