Home / 864,007.20-1,296,010.80-486,093.60

Finding the Fourth Proportional to 864,007.20, 1,296,010.80 and 486,093.60

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Solution

The fourth proportional to 864,007.20, 1,296,010.80 and 486,093.60 is: 729,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,007.20 : 1,296,010.80 = 486,093.60 : x
  2. Step 2: Convert to fraction form
    864,007.20/1,296,010.80 = 486,093.60/x
  3. Step 3: Cross multiply
    864,007.20x = 1,296,010.80 × 486,093.60
  4. Step 4: Simplify right side
    864,007.20x = 629,982,555,410.88
  5. Step 5: Solve for x
    x = 629,982,555,410.88/864,007.20
  6. Step 6: Final answer
    x = 729,140.40

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Similar ratio
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1.5x scale

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.