Home / 2,686,890.40-4,030,249.20-889,856.80

Finding the Fourth Proportional to 2,686,890.40, 4,030,249.20 and 889,856.80

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Solution

The fourth proportional to 2,686,890.40, 4,030,249.20 and 889,856.80 is: 1,334,756.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,890.40 : 4,030,249.20 = 889,856.80 : x
  2. Step 2: Convert to fraction form
    2,686,890.40/4,030,249.20 = 889,856.80/x
  3. Step 3: Cross multiply
    2,686,890.40x = 4,030,249.20 × 889,856.80
  4. Step 4: Simplify right side
    2,686,890.40x = 3,586,344,656,314.56
  5. Step 5: Solve for x
    x = 3,586,344,656,314.56/2,686,890.40
  6. Step 6: Final answer
    x = 1,334,756.59

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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.