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Finding the Fourth Proportional to 714.28, 986.08 and 452.44

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Solution

The fourth proportional to 714.28, 986.08 and 452.44 is: 624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.28 : 986.08 = 452.44 : x
  2. Step 2: Convert to fraction form
    714.28/986.08 = 452.44/x
  3. Step 3: Cross multiply
    714.28x = 986.08 × 452.44
  4. Step 4: Simplify right side
    714.28x = 446,142.04
  5. Step 5: Solve for x
    x = 446,142.04/714.28
  6. Step 6: Final answer
    x = 624.60

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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.