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Finding the Fourth Proportional to 832.44, 1,246.68 and 485.04

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Solution

The fourth proportional to 832.44, 1,246.68 and 485.04 is: 726.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.44 : 1,246.68 = 485.04 : x
  2. Step 2: Convert to fraction form
    832.44/1,246.68 = 485.04/x
  3. Step 3: Cross multiply
    832.44x = 1,246.68 × 485.04
  4. Step 4: Simplify right side
    832.44x = 604,689.67
  5. Step 5: Solve for x
    x = 604,689.67/832.44
  6. Step 6: Final answer
    x = 726.41

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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.