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Finding the Fourth Proportional to 625.23, 932.87 and 555.57

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Solution

The fourth proportional to 625.23, 932.87 and 555.57 is: 828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.23 : 932.87 = 555.57 : x
  2. Step 2: Convert to fraction form
    625.23/932.87 = 555.57/x
  3. Step 3: Cross multiply
    625.23x = 932.87 × 555.57
  4. Step 4: Simplify right side
    625.23x = 518,275.97
  5. Step 5: Solve for x
    x = 518,275.97/625.23
  6. Step 6: Final answer
    x = 828.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.