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Finding the Fourth Proportional to 794.47, 1,095.85 and 499.48

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Solution

The fourth proportional to 794.47, 1,095.85 and 499.48 is: 688.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.47 : 1,095.85 = 499.48 : x
  2. Step 2: Convert to fraction form
    794.47/1,095.85 = 499.48/x
  3. Step 3: Cross multiply
    794.47x = 1,095.85 × 499.48
  4. Step 4: Simplify right side
    794.47x = 547,355.16
  5. Step 5: Solve for x
    x = 547,355.16/794.47
  6. Step 6: Final answer
    x = 688.96

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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.