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Finding the Fourth Proportional to 625.39, 935.35 and 510.57

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Solution

The fourth proportional to 625.39, 935.35 and 510.57 is: 763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.39 : 935.35 = 510.57 : x
  2. Step 2: Convert to fraction form
    625.39/935.35 = 510.57/x
  3. Step 3: Cross multiply
    625.39x = 935.35 × 510.57
  4. Step 4: Simplify right side
    625.39x = 477,560.37
  5. Step 5: Solve for x
    x = 477,560.37/625.39
  6. Step 6: Final answer
    x = 763.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.