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Finding the Third Proportional to 668,426 and 1,391,929

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Solution

The third proportional to 668,426 and 1,391,929 is: 2,898,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,426 : 1,391,929 = 1,391,929 : x
  2. Step 2: Convert to fraction form
    668,426/1,391,929 = 1,391,929/x
  3. Step 3: Cross multiply
    668,426x = 1,391,929 × 1,391,929
  4. Step 4: Simplify right side
    668,426x = 1,937,466,341,041
  5. Step 5: Solve for x
    x = 1,937,466,341,041/668,426
  6. Step 6: Final answer
    x = 2,898,550.24

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.