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Finding the Fourth Proportional to 903.32, 1,246.22 and 608.12

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Solution

The fourth proportional to 903.32, 1,246.22 and 608.12 is: 838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.32 : 1,246.22 = 608.12 : x
  2. Step 2: Convert to fraction form
    903.32/1,246.22 = 608.12/x
  3. Step 3: Cross multiply
    903.32x = 1,246.22 × 608.12
  4. Step 4: Simplify right side
    903.32x = 757,842.03
  5. Step 5: Solve for x
    x = 757,842.03/903.32
  6. Step 6: Final answer
    x = 838.96

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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.