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Finding the Fourth Proportional to 1,499.42, 2,249.13 and 459.41

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Solution

The fourth proportional to 1,499.42, 2,249.13 and 459.41 is: 689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.42 : 2,249.13 = 459.41 : x
  2. Step 2: Convert to fraction form
    1,499.42/2,249.13 = 459.41/x
  3. Step 3: Cross multiply
    1,499.42x = 2,249.13 × 459.41
  4. Step 4: Simplify right side
    1,499.42x = 1,033,261.57
  5. Step 5: Solve for x
    x = 1,033,261.57/1,499.42
  6. Step 6: Final answer
    x = 689.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.