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Finding the Fourth Proportional to 793.19, 1,094.72 and 498.35

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Solution

The fourth proportional to 793.19, 1,094.72 and 498.35 is: 687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.19 : 1,094.72 = 498.35 : x
  2. Step 2: Convert to fraction form
    793.19/1,094.72 = 498.35/x
  3. Step 3: Cross multiply
    793.19x = 1,094.72 × 498.35
  4. Step 4: Simplify right side
    793.19x = 545,553.96
  5. Step 5: Solve for x
    x = 545,553.96/793.19
  6. Step 6: Final answer
    x = 687.80

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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.