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Finding the Third Proportional to 589,120 and 900,800

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Solution

The third proportional to 589,120 and 900,800 is: 1,377,377.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,120 : 900,800 = 900,800 : x
  2. Step 2: Convert to fraction form
    589,120/900,800 = 900,800/x
  3. Step 3: Cross multiply
    589,120x = 900,800 × 900,800
  4. Step 4: Simplify right side
    589,120x = 811,440,640,000
  5. Step 5: Solve for x
    x = 811,440,640,000/589,120
  6. Step 6: Final answer
    x = 1,377,377.51

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.