Home / 3,986,445.74-5,980,621.16-1,290,773.96

Finding the Fourth Proportional to 3,986,445.74, 5,980,621.16 and 1,290,773.96

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Solution

The fourth proportional to 3,986,445.74, 5,980,621.16 and 1,290,773.96 is: 1,936,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,445.74 : 5,980,621.16 = 1,290,773.96 : x
  2. Step 2: Convert to fraction form
    3,986,445.74/5,980,621.16 = 1,290,773.96/x
  3. Step 3: Cross multiply
    3,986,445.74x = 5,980,621.16 × 1,290,773.96
  4. Step 4: Simplify right side
    3,986,445.74x = 7,719,630,057,952.99
  5. Step 5: Solve for x
    x = 7,719,630,057,952.99/3,986,445.74
  6. Step 6: Final answer
    x = 1,936,469.37

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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.