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Finding the Fourth Proportional to 654,620.10, 980,180.55 and 654,620.10

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Solution

The fourth proportional to 654,620.10, 980,180.55 and 654,620.10 is: 980,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,620.10 : 980,180.55 = 654,620.10 : x
  2. Step 2: Convert to fraction form
    654,620.10/980,180.55 = 654,620.10/x
  3. Step 3: Cross multiply
    654,620.10x = 980,180.55 × 654,620.10
  4. Step 4: Simplify right side
    654,620.10x = 641,645,889,659.06
  5. Step 5: Solve for x
    x = 641,645,889,659.06/654,620.10
  6. Step 6: Final answer
    x = 980,180.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.