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Finding the Third Proportional to 385,671 and 837,679.50

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Solution

The third proportional to 385,671 and 837,679.50 is: 1,819,444.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,671 : 837,679.50 = 837,679.50 : x
  2. Step 2: Convert to fraction form
    385,671/837,679.50 = 837,679.50/x
  3. Step 3: Cross multiply
    385,671x = 837,679.50 × 837,679.50
  4. Step 4: Simplify right side
    385,671x = 701,706,944,720.25
  5. Step 5: Solve for x
    x = 701,706,944,720.25/385,671
  6. Step 6: Final answer
    x = 1,819,444.41

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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.