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Finding the Fourth Proportional to 755.04, 1,042.06 and 475.50

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Solution

The fourth proportional to 755.04, 1,042.06 and 475.50 is: 656.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    755.04 : 1,042.06 = 475.50 : x
  2. Step 2: Convert to fraction form
    755.04/1,042.06 = 475.50/x
  3. Step 3: Cross multiply
    755.04x = 1,042.06 × 475.50
  4. Step 4: Simplify right side
    755.04x = 495,499.53
  5. Step 5: Solve for x
    x = 495,499.53/755.04
  6. Step 6: Final answer
    x = 656.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.