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Finding the Third Proportional to 555,626 and 829,778

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Solution

The third proportional to 555,626 and 829,778 is: 1,239,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,626 : 829,778 = 829,778 : x
  2. Step 2: Convert to fraction form
    555,626/829,778 = 829,778/x
  3. Step 3: Cross multiply
    555,626x = 829,778 × 829,778
  4. Step 4: Simplify right side
    555,626x = 688,531,529,284
  5. Step 5: Solve for x
    x = 688,531,529,284/555,626
  6. Step 6: Final answer
    x = 1,239,199.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.