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Finding the Third Proportional to 756,310 and 1,638,637.50

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Solution

The third proportional to 756,310 and 1,638,637.50 is: 3,550,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,310 : 1,638,637.50 = 1,638,637.50 : x
  2. Step 2: Convert to fraction form
    756,310/1,638,637.50 = 1,638,637.50/x
  3. Step 3: Cross multiply
    756,310x = 1,638,637.50 × 1,638,637.50
  4. Step 4: Simplify right side
    756,310x = 2,685,132,856,406.25
  5. Step 5: Solve for x
    x = 2,685,132,856,406.25/756,310
  6. Step 6: Final answer
    x = 3,550,307.22

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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.