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Finding the Fourth Proportional to 714.24, 985.88 and 452.32

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Solution

The fourth proportional to 714.24, 985.88 and 452.32 is: 624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.24 : 985.88 = 452.32 : x
  2. Step 2: Convert to fraction form
    714.24/985.88 = 452.32/x
  3. Step 3: Cross multiply
    714.24x = 985.88 × 452.32
  4. Step 4: Simplify right side
    714.24x = 445,933.24
  5. Step 5: Solve for x
    x = 445,933.24/714.24
  6. Step 6: Final answer
    x = 624.35

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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.