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Finding the Fourth Proportional to 735.63, 1,102.74 and 410.31

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Solution

The fourth proportional to 735.63, 1,102.74 and 410.31 is: 615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.63 : 1,102.74 = 410.31 : x
  2. Step 2: Convert to fraction form
    735.63/1,102.74 = 410.31/x
  3. Step 3: Cross multiply
    735.63x = 1,102.74 × 410.31
  4. Step 4: Simplify right side
    735.63x = 452,465.25
  5. Step 5: Solve for x
    x = 452,465.25/735.63
  6. Step 6: Final answer
    x = 615.07

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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.