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Finding the Fourth Proportional to 804.56, 1,108.68 and 524.48

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Solution

The fourth proportional to 804.56, 1,108.68 and 524.48 is: 722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.56 : 1,108.68 = 524.48 : x
  2. Step 2: Convert to fraction form
    804.56/1,108.68 = 524.48/x
  3. Step 3: Cross multiply
    804.56x = 1,108.68 × 524.48
  4. Step 4: Simplify right side
    804.56x = 581,480.49
  5. Step 5: Solve for x
    x = 581,480.49/804.56
  6. Step 6: Final answer
    x = 722.73

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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.