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Finding the Third Proportional to 670.13 and 1,036.69

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Solution

The third proportional to 670.13 and 1,036.69 is: 1,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.13 : 1,036.69 = 1,036.69 : x
  2. Step 2: Convert to fraction form
    670.13/1,036.69 = 1,036.69/x
  3. Step 3: Cross multiply
    670.13x = 1,036.69 × 1,036.69
  4. Step 4: Simplify right side
    670.13x = 1,074,720.97
  5. Step 5: Solve for x
    x = 1,074,720.97/670.13
  6. Step 6: Final answer
    x = 1,603.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.