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Finding the Fourth Proportional to 915.49, 1,373.24 and 734.03

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Solution

The fourth proportional to 915.49, 1,373.24 and 734.03 is: 1,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.49 : 1,373.24 = 734.03 : x
  2. Step 2: Convert to fraction form
    915.49/1,373.24 = 734.03/x
  3. Step 3: Cross multiply
    915.49x = 1,373.24 × 734.03
  4. Step 4: Simplify right side
    915.49x = 1,007,999.36
  5. Step 5: Solve for x
    x = 1,007,999.36/915.49
  6. Step 6: Final answer
    x = 1,101.05

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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.