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Finding the Third Proportional to 673,686 and 1,440,720

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Solution

The third proportional to 673,686 and 1,440,720 is: 3,081,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,686 : 1,440,720 = 1,440,720 : x
  2. Step 2: Convert to fraction form
    673,686/1,440,720 = 1,440,720/x
  3. Step 3: Cross multiply
    673,686x = 1,440,720 × 1,440,720
  4. Step 4: Simplify right side
    673,686x = 2,075,674,118,400
  5. Step 5: Solve for x
    x = 2,075,674,118,400/673,686
  6. Step 6: Final answer
    x = 3,081,070.59

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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.