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Finding the Third Proportional to 288,479.81 and 627,756.75

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Solution

The third proportional to 288,479.81 and 627,756.75 is: 1,366,052.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,479.81 : 627,756.75 = 627,756.75 : x
  2. Step 2: Convert to fraction form
    288,479.81/627,756.75 = 627,756.75/x
  3. Step 3: Cross multiply
    288,479.81x = 627,756.75 × 627,756.75
  4. Step 4: Simplify right side
    288,479.81x = 394,078,537,170.56
  5. Step 5: Solve for x
    x = 394,078,537,170.56/288,479.81
  6. Step 6: Final answer
    x = 1,366,052.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.