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Finding the Fourth Proportional to 782.06, 1,173.70 and 733.61

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Solution

The fourth proportional to 782.06, 1,173.70 and 733.61 is: 1,101.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    782.06 : 1,173.70 = 733.61 : x
  2. Step 2: Convert to fraction form
    782.06/1,173.70 = 733.61/x
  3. Step 3: Cross multiply
    782.06x = 1,173.70 × 733.61
  4. Step 4: Simplify right side
    782.06x = 861,039.16
  5. Step 5: Solve for x
    x = 861,039.16/782.06
  6. Step 6: Final answer
    x = 1,101.00

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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.