Home / 1,979,591.70-2,968,184.70-780,131.55

Finding the Fourth Proportional to 1,979,591.70, 2,968,184.70 and 780,131.55

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Solution

The fourth proportional to 1,979,591.70, 2,968,184.70 and 780,131.55 is: 1,169,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,591.70 : 2,968,184.70 = 780,131.55 : x
  2. Step 2: Convert to fraction form
    1,979,591.70/2,968,184.70 = 780,131.55/x
  3. Step 3: Cross multiply
    1,979,591.70x = 2,968,184.70 × 780,131.55
  4. Step 4: Simplify right side
    1,979,591.70x = 2,315,574,530,697.29
  5. Step 5: Solve for x
    x = 2,315,574,530,697.29/1,979,591.70
  6. Step 6: Final answer
    x = 1,169,723.30

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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.