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Finding the Fourth Proportional to 914.27, 1,373.45 and 549.32

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Solution

The fourth proportional to 914.27, 1,373.45 and 549.32 is: 825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.27 : 1,373.45 = 549.32 : x
  2. Step 2: Convert to fraction form
    914.27/1,373.45 = 549.32/x
  3. Step 3: Cross multiply
    914.27x = 1,373.45 × 549.32
  4. Step 4: Simplify right side
    914.27x = 754,453.94
  5. Step 5: Solve for x
    x = 754,453.94/914.27
  6. Step 6: Final answer
    x = 825.20

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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.