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Finding the Fourth Proportional to 833.01, 1,248.70 and 540.33

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Solution

The fourth proportional to 833.01, 1,248.70 and 540.33 is: 809.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.01 : 1,248.70 = 540.33 : x
  2. Step 2: Convert to fraction form
    833.01/1,248.70 = 540.33/x
  3. Step 3: Cross multiply
    833.01x = 1,248.70 × 540.33
  4. Step 4: Simplify right side
    833.01x = 674,701.13
  5. Step 5: Solve for x
    x = 674,701.13/833.01
  6. Step 6: Final answer
    x = 809.96

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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.