Home / 1,993,923.20-2,986,672.80-1,320,327.20

Finding the Fourth Proportional to 1,993,923.20, 2,986,672.80 and 1,320,327.20

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Solution

The fourth proportional to 1,993,923.20, 2,986,672.80 and 1,320,327.20 is: 1,977,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,923.20 : 2,986,672.80 = 1,320,327.20 : x
  2. Step 2: Convert to fraction form
    1,993,923.20/2,986,672.80 = 1,320,327.20/x
  3. Step 3: Cross multiply
    1,993,923.20x = 2,986,672.80 × 1,320,327.20
  4. Step 4: Simplify right side
    1,993,923.20x = 3,943,385,335,340.16
  5. Step 5: Solve for x
    x = 3,943,385,335,340.16/1,993,923.20
  6. Step 6: Final answer
    x = 1,977,701.72

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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.