Home / 1,260,249.21-1,739,074.78-716,309.50

Finding the Fourth Proportional to 1,260,249.21, 1,739,074.78 and 716,309.50

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Solution

The fourth proportional to 1,260,249.21, 1,739,074.78 and 716,309.50 is: 988,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,249.21 : 1,739,074.78 = 716,309.50 : x
  2. Step 2: Convert to fraction form
    1,260,249.21/1,739,074.78 = 716,309.50/x
  3. Step 3: Cross multiply
    1,260,249.21x = 1,739,074.78 × 716,309.50
  4. Step 4: Simplify right side
    1,260,249.21x = 1,245,715,786,124.41
  5. Step 5: Solve for x
    x = 1,245,715,786,124.41/1,260,249.21
  6. Step 6: Final answer
    x = 988,467.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.