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Finding the Fourth Proportional to 902.80, 1,246.08 and 588.52

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Solution

The fourth proportional to 902.80, 1,246.08 and 588.52 is: 812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.80 : 1,246.08 = 588.52 : x
  2. Step 2: Convert to fraction form
    902.80/1,246.08 = 588.52/x
  3. Step 3: Cross multiply
    902.80x = 1,246.08 × 588.52
  4. Step 4: Simplify right side
    902.80x = 733,343.00
  5. Step 5: Solve for x
    x = 733,343.00/902.80
  6. Step 6: Final answer
    x = 812.30

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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.