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Finding the Third Proportional to 560,311 and 838,486

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Solution

The third proportional to 560,311 and 838,486 is: 1,254,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,311 : 838,486 = 838,486 : x
  2. Step 2: Convert to fraction form
    560,311/838,486 = 838,486/x
  3. Step 3: Cross multiply
    560,311x = 838,486 × 838,486
  4. Step 4: Simplify right side
    560,311x = 703,058,772,196
  5. Step 5: Solve for x
    x = 703,058,772,196/560,311
  6. Step 6: Final answer
    x = 1,254,765.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.