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Finding the Third Proportional to 686,542.50 and 1,495,136.25

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Solution

The third proportional to 686,542.50 and 1,495,136.25 is: 3,256,072.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,542.50 : 1,495,136.25 = 1,495,136.25 : x
  2. Step 2: Convert to fraction form
    686,542.50/1,495,136.25 = 1,495,136.25/x
  3. Step 3: Cross multiply
    686,542.50x = 1,495,136.25 × 1,495,136.25
  4. Step 4: Simplify right side
    686,542.50x = 2,235,432,406,064.06
  5. Step 5: Solve for x
    x = 2,235,432,406,064.06/686,542.50
  6. Step 6: Final answer
    x = 3,256,072.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.