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Finding the Fourth Proportional to 1,170.94, 1,755.33 and 554.26

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Solution

The fourth proportional to 1,170.94, 1,755.33 and 554.26 is: 830.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.94 : 1,755.33 = 554.26 : x
  2. Step 2: Convert to fraction form
    1,170.94/1,755.33 = 554.26/x
  3. Step 3: Cross multiply
    1,170.94x = 1,755.33 × 554.26
  4. Step 4: Simplify right side
    1,170.94x = 972,909.21
  5. Step 5: Solve for x
    x = 972,909.21/1,170.94
  6. Step 6: Final answer
    x = 830.88

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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.