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Finding the Fourth Proportional to 734.80, 1,102.20 and 700.24

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Solution

The fourth proportional to 734.80, 1,102.20 and 700.24 is: 1,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.80 : 1,102.20 = 700.24 : x
  2. Step 2: Convert to fraction form
    734.80/1,102.20 = 700.24/x
  3. Step 3: Cross multiply
    734.80x = 1,102.20 × 700.24
  4. Step 4: Simplify right side
    734.80x = 771,804.53
  5. Step 5: Solve for x
    x = 771,804.53/734.80
  6. Step 6: Final answer
    x = 1,050.36

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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.