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Finding the Third Proportional to 788.91 and 1,216.27

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Solution

The third proportional to 788.91 and 1,216.27 is: 1,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    788.91 : 1,216.27 = 1,216.27 : x
  2. Step 2: Convert to fraction form
    788.91/1,216.27 = 1,216.27/x
  3. Step 3: Cross multiply
    788.91x = 1,216.27 × 1,216.27
  4. Step 4: Simplify right side
    788.91x = 1,479,302.07
  5. Step 5: Solve for x
    x = 1,479,302.07/788.91
  6. Step 6: Final answer
    x = 1,875.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.