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Finding the Third Proportional to 757.48 and 1,190.32

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Solution

The third proportional to 757.48 and 1,190.32 is: 1,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.48 : 1,190.32 = 1,190.32 : x
  2. Step 2: Convert to fraction form
    757.48/1,190.32 = 1,190.32/x
  3. Step 3: Cross multiply
    757.48x = 1,190.32 × 1,190.32
  4. Step 4: Simplify right side
    757.48x = 1,416,862.45
  5. Step 5: Solve for x
    x = 1,416,862.45/757.48
  6. Step 6: Final answer
    x = 1,870.50

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.