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Finding the Third Proportional to 815,145 and 1,918,002.75

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Solution

The third proportional to 815,145 and 1,918,002.75 is: 4,512,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,145 : 1,918,002.75 = 1,918,002.75 : x
  2. Step 2: Convert to fraction form
    815,145/1,918,002.75 = 1,918,002.75/x
  3. Step 3: Cross multiply
    815,145x = 1,918,002.75 × 1,918,002.75
  4. Step 4: Simplify right side
    815,145x = 3,678,734,549,007.56
  5. Step 5: Solve for x
    x = 3,678,734,549,007.56/815,145
  6. Step 6: Final answer
    x = 4,512,981.80

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.