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Finding the Fourth Proportional to 797.58, 1,101.19 and 499.27

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Solution

The fourth proportional to 797.58, 1,101.19 and 499.27 is: 689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.58 : 1,101.19 = 499.27 : x
  2. Step 2: Convert to fraction form
    797.58/1,101.19 = 499.27/x
  3. Step 3: Cross multiply
    797.58x = 1,101.19 × 499.27
  4. Step 4: Simplify right side
    797.58x = 549,791.13
  5. Step 5: Solve for x
    x = 549,791.13/797.58
  6. Step 6: Final answer
    x = 689.32

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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.