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Finding the Third Proportional to 385,674 and 837,687

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Solution

The third proportional to 385,674 and 837,687 is: 1,819,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,674 : 837,687 = 837,687 : x
  2. Step 2: Convert to fraction form
    385,674/837,687 = 837,687/x
  3. Step 3: Cross multiply
    385,674x = 837,687 × 837,687
  4. Step 4: Simplify right side
    385,674x = 701,719,509,969
  5. Step 5: Solve for x
    x = 701,719,509,969/385,674
  6. Step 6: Final answer
    x = 1,819,462.84

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.