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Finding the Fourth Proportional to 651.78, 976.29 and 606.83

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Solution

The fourth proportional to 651.78, 976.29 and 606.83 is: 908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.78 : 976.29 = 606.83 : x
  2. Step 2: Convert to fraction form
    651.78/976.29 = 606.83/x
  3. Step 3: Cross multiply
    651.78x = 976.29 × 606.83
  4. Step 4: Simplify right side
    651.78x = 592,442.06
  5. Step 5: Solve for x
    x = 592,442.06/651.78
  6. Step 6: Final answer
    x = 908.96

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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.