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Finding the Fourth Proportional to 832.90, 1,149.18 and 537.82

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Solution

The fourth proportional to 832.90, 1,149.18 and 537.82 is: 742.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.90 : 1,149.18 = 537.82 : x
  2. Step 2: Convert to fraction form
    832.90/1,149.18 = 537.82/x
  3. Step 3: Cross multiply
    832.90x = 1,149.18 × 537.82
  4. Step 4: Simplify right side
    832.90x = 618,051.99
  5. Step 5: Solve for x
    x = 618,051.99/832.90
  6. Step 6: Final answer
    x = 742.05

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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.