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Finding the Third Proportional to 402,485 and 838,041

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Solution

The third proportional to 402,485 and 838,041 is: 1,744,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,485 : 838,041 = 838,041 : x
  2. Step 2: Convert to fraction form
    402,485/838,041 = 838,041/x
  3. Step 3: Cross multiply
    402,485x = 838,041 × 838,041
  4. Step 4: Simplify right side
    402,485x = 702,312,717,681
  5. Step 5: Solve for x
    x = 702,312,717,681/402,485
  6. Step 6: Final answer
    x = 1,744,941.35

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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.