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Finding the Third Proportional to 677.25 and 1,445.63

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Solution

The third proportional to 677.25 and 1,445.63 is: 3,085.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.25 : 1,445.63 = 1,445.63 : x
  2. Step 2: Convert to fraction form
    677.25/1,445.63 = 1,445.63/x
  3. Step 3: Cross multiply
    677.25x = 1,445.63 × 1,445.63
  4. Step 4: Simplify right side
    677.25x = 2,089,831.64
  5. Step 5: Solve for x
    x = 2,089,831.64/677.25
  6. Step 6: Final answer
    x = 3,085.76

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.