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Finding the Third Proportional to 711,545 and 1,555,822

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Solution

The third proportional to 711,545 and 1,555,822 is: 3,401,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,545 : 1,555,822 = 1,555,822 : x
  2. Step 2: Convert to fraction form
    711,545/1,555,822 = 1,555,822/x
  3. Step 3: Cross multiply
    711,545x = 1,555,822 × 1,555,822
  4. Step 4: Simplify right side
    711,545x = 2,420,582,095,684
  5. Step 5: Solve for x
    x = 2,420,582,095,684/711,545
  6. Step 6: Final answer
    x = 3,401,867.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.