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Finding the Fourth Proportional to 714.92, 986.73 and 452.88

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Solution

The fourth proportional to 714.92, 986.73 and 452.88 is: 625.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.92 : 986.73 = 452.88 : x
  2. Step 2: Convert to fraction form
    714.92/986.73 = 452.88/x
  3. Step 3: Cross multiply
    714.92x = 986.73 × 452.88
  4. Step 4: Simplify right side
    714.92x = 446,870.28
  5. Step 5: Solve for x
    x = 446,870.28/714.92
  6. Step 6: Final answer
    x = 625.07

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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.