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Finding the Fourth Proportional to 1,544.45, 2,316.44 and 448.59

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Solution

The fourth proportional to 1,544.45, 2,316.44 and 448.59 is: 672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.45 : 2,316.44 = 448.59 : x
  2. Step 2: Convert to fraction form
    1,544.45/2,316.44 = 448.59/x
  3. Step 3: Cross multiply
    1,544.45x = 2,316.44 × 448.59
  4. Step 4: Simplify right side
    1,544.45x = 1,039,132.94
  5. Step 5: Solve for x
    x = 1,039,132.94/1,544.45
  6. Step 6: Final answer
    x = 672.82

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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.