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Finding the Third Proportional to 345,708 and 564,506

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Solution

The third proportional to 345,708 and 564,506 is: 921,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,708 : 564,506 = 564,506 : x
  2. Step 2: Convert to fraction form
    345,708/564,506 = 564,506/x
  3. Step 3: Cross multiply
    345,708x = 564,506 × 564,506
  4. Step 4: Simplify right side
    345,708x = 318,667,024,036
  5. Step 5: Solve for x
    x = 318,667,024,036/345,708
  6. Step 6: Final answer
    x = 921,780.88

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.