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Finding the Third Proportional to 477,180 and 1,029,120

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Solution

The third proportional to 477,180 and 1,029,120 is: 2,219,472.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,180 : 1,029,120 = 1,029,120 : x
  2. Step 2: Convert to fraction form
    477,180/1,029,120 = 1,029,120/x
  3. Step 3: Cross multiply
    477,180x = 1,029,120 × 1,029,120
  4. Step 4: Simplify right side
    477,180x = 1,059,087,974,400
  5. Step 5: Solve for x
    x = 1,059,087,974,400/477,180
  6. Step 6: Final answer
    x = 2,219,472.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.