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Finding the Third Proportional to 338,656.50 and 740,280.75

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Solution

The third proportional to 338,656.50 and 740,280.75 is: 1,618,204.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,656.50 : 740,280.75 = 740,280.75 : x
  2. Step 2: Convert to fraction form
    338,656.50/740,280.75 = 740,280.75/x
  3. Step 3: Cross multiply
    338,656.50x = 740,280.75 × 740,280.75
  4. Step 4: Simplify right side
    338,656.50x = 548,015,588,820.56
  5. Step 5: Solve for x
    x = 548,015,588,820.56/338,656.50
  6. Step 6: Final answer
    x = 1,618,204.84

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.