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Finding the Third Proportional to 720,479 and 1,130,166

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Solution

The third proportional to 720,479 and 1,130,166 is: 1,772,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,479 : 1,130,166 = 1,130,166 : x
  2. Step 2: Convert to fraction form
    720,479/1,130,166 = 1,130,166/x
  3. Step 3: Cross multiply
    720,479x = 1,130,166 × 1,130,166
  4. Step 4: Simplify right side
    720,479x = 1,277,275,187,556
  5. Step 5: Solve for x
    x = 1,277,275,187,556/720,479
  6. Step 6: Final answer
    x = 1,772,813.90

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.