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Finding the Third Proportional to 402,502 and 838,076

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Solution

The third proportional to 402,502 and 838,076 is: 1,745,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,502 : 838,076 = 838,076 : x
  2. Step 2: Convert to fraction form
    402,502/838,076 = 838,076/x
  3. Step 3: Cross multiply
    402,502x = 838,076 × 838,076
  4. Step 4: Simplify right side
    402,502x = 702,371,381,776
  5. Step 5: Solve for x
    x = 702,371,381,776/402,502
  6. Step 6: Final answer
    x = 1,745,013.40

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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.