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Finding the Fourth Proportional to 824.15, 1,237.17 and 650.93

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Solution

The fourth proportional to 824.15, 1,237.17 and 650.93 is: 977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.15 : 1,237.17 = 650.93 : x
  2. Step 2: Convert to fraction form
    824.15/1,237.17 = 650.93/x
  3. Step 3: Cross multiply
    824.15x = 1,237.17 × 650.93
  4. Step 4: Simplify right side
    824.15x = 805,304.88
  5. Step 5: Solve for x
    x = 805,304.88/824.15
  6. Step 6: Final answer
    x = 977.14

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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.