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Finding the Fourth Proportional to 625.52, 942.52 and 519.68

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Solution

The fourth proportional to 625.52, 942.52 and 519.68 is: 783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.52 : 942.52 = 519.68 : x
  2. Step 2: Convert to fraction form
    625.52/942.52 = 519.68/x
  3. Step 3: Cross multiply
    625.52x = 942.52 × 519.68
  4. Step 4: Simplify right side
    625.52x = 489,808.79
  5. Step 5: Solve for x
    x = 489,808.79/625.52
  6. Step 6: Final answer
    x = 783.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.