Home / 1,215,267.20-1,821,734.40-945,245.60

Finding the Fourth Proportional to 1,215,267.20, 1,821,734.40 and 945,245.60

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Solution

The fourth proportional to 1,215,267.20, 1,821,734.40 and 945,245.60 is: 1,416,961.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,267.20 : 1,821,734.40 = 945,245.60 : x
  2. Step 2: Convert to fraction form
    1,215,267.20/1,821,734.40 = 945,245.60/x
  3. Step 3: Cross multiply
    1,215,267.20x = 1,821,734.40 × 945,245.60
  4. Step 4: Simplify right side
    1,215,267.20x = 1,721,986,425,968.64
  5. Step 5: Solve for x
    x = 1,721,986,425,968.64/1,215,267.20
  6. Step 6: Final answer
    x = 1,416,961.16

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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.