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Finding the Fourth Proportional to 902.05, 1,244.45 and 652.82

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Solution

The fourth proportional to 902.05, 1,244.45 and 652.82 is: 900.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.05 : 1,244.45 = 652.82 : x
  2. Step 2: Convert to fraction form
    902.05/1,244.45 = 652.82/x
  3. Step 3: Cross multiply
    902.05x = 1,244.45 × 652.82
  4. Step 4: Simplify right side
    902.05x = 812,397.26
  5. Step 5: Solve for x
    x = 812,397.26/902.05
  6. Step 6: Final answer
    x = 900.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.