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Finding the Fourth Proportional to 734.85, 1,101.66 and 503.16

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Solution

The fourth proportional to 734.85, 1,101.66 and 503.16 is: 754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.85 : 1,101.66 = 503.16 : x
  2. Step 2: Convert to fraction form
    734.85/1,101.66 = 503.16/x
  3. Step 3: Cross multiply
    734.85x = 1,101.66 × 503.16
  4. Step 4: Simplify right side
    734.85x = 554,311.25
  5. Step 5: Solve for x
    x = 554,311.25/734.85
  6. Step 6: Final answer
    x = 754.32

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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.