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Finding the Third Proportional to 402,862 and 564,738

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Solution

The third proportional to 402,862 and 564,738 is: 791,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,862 : 564,738 = 564,738 : x
  2. Step 2: Convert to fraction form
    402,862/564,738 = 564,738/x
  3. Step 3: Cross multiply
    402,862x = 564,738 × 564,738
  4. Step 4: Simplify right side
    402,862x = 318,929,008,644
  5. Step 5: Solve for x
    x = 318,929,008,644/402,862
  6. Step 6: Final answer
    x = 791,658.21

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.