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Finding the Third Proportional to 613,712 and 1,312,720

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Solution

The third proportional to 613,712 and 1,312,720 is: 2,807,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,712 : 1,312,720 = 1,312,720 : x
  2. Step 2: Convert to fraction form
    613,712/1,312,720 = 1,312,720/x
  3. Step 3: Cross multiply
    613,712x = 1,312,720 × 1,312,720
  4. Step 4: Simplify right side
    613,712x = 1,723,233,798,400
  5. Step 5: Solve for x
    x = 1,723,233,798,400/613,712
  6. Step 6: Final answer
    x = 2,807,886.76

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.