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Finding the Third Proportional to 402,404 and 837,865

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Solution

The third proportional to 402,404 and 837,865 is: 1,744,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,404 : 837,865 = 837,865 : x
  2. Step 2: Convert to fraction form
    402,404/837,865 = 837,865/x
  3. Step 3: Cross multiply
    402,404x = 837,865 × 837,865
  4. Step 4: Simplify right side
    402,404x = 702,017,758,225
  5. Step 5: Solve for x
    x = 702,017,758,225/402,404
  6. Step 6: Final answer
    x = 1,744,559.59

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.