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Finding the Third Proportional to 788.09 and 1,191.74

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Solution

The third proportional to 788.09 and 1,191.74 is: 1,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    788.09 : 1,191.74 = 1,191.74 : x
  2. Step 2: Convert to fraction form
    788.09/1,191.74 = 1,191.74/x
  3. Step 3: Cross multiply
    788.09x = 1,191.74 × 1,191.74
  4. Step 4: Simplify right side
    788.09x = 1,420,254.10
  5. Step 5: Solve for x
    x = 1,420,254.10/788.09
  6. Step 6: Final answer
    x = 1,802.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.