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Finding the Third Proportional to 778,140 and 1,672,537.50

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Solution

The third proportional to 778,140 and 1,672,537.50 is: 3,594,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,140 : 1,672,537.50 = 1,672,537.50 : x
  2. Step 2: Convert to fraction form
    778,140/1,672,537.50 = 1,672,537.50/x
  3. Step 3: Cross multiply
    778,140x = 1,672,537.50 × 1,672,537.50
  4. Step 4: Simplify right side
    778,140x = 2,797,381,688,906.25
  5. Step 5: Solve for x
    x = 2,797,381,688,906.25/778,140
  6. Step 6: Final answer
    x = 3,594,959.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.