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Finding the Fourth Proportional to 794.84, 1,094.50 and 663.62

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Solution

The fourth proportional to 794.84, 1,094.50 and 663.62 is: 913.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.84 : 1,094.50 = 663.62 : x
  2. Step 2: Convert to fraction form
    794.84/1,094.50 = 663.62/x
  3. Step 3: Cross multiply
    794.84x = 1,094.50 × 663.62
  4. Step 4: Simplify right side
    794.84x = 726,333.17
  5. Step 5: Solve for x
    x = 726,333.17/794.84
  6. Step 6: Final answer
    x = 913.81

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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.