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Finding the Fourth Proportional to 796.34, 1,098.50 and 501.50

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Solution

The fourth proportional to 796.34, 1,098.50 and 501.50 is: 691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.34 : 1,098.50 = 501.50 : x
  2. Step 2: Convert to fraction form
    796.34/1,098.50 = 501.50/x
  3. Step 3: Cross multiply
    796.34x = 1,098.50 × 501.50
  4. Step 4: Simplify right side
    796.34x = 550,897.75
  5. Step 5: Solve for x
    x = 550,897.75/796.34
  6. Step 6: Final answer
    x = 691.79

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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.