Home / 3,986,410.80-5,980,199.40-1,290,277.20

Finding the Fourth Proportional to 3,986,410.80, 5,980,199.40 and 1,290,277.20

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Solution

The fourth proportional to 3,986,410.80, 5,980,199.40 and 1,290,277.20 is: 1,935,604.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,410.80 : 5,980,199.40 = 1,290,277.20 : x
  2. Step 2: Convert to fraction form
    3,986,410.80/5,980,199.40 = 1,290,277.20/x
  3. Step 3: Cross multiply
    3,986,410.80x = 5,980,199.40 × 1,290,277.20
  4. Step 4: Simplify right side
    3,986,410.80x = 7,716,114,937,273.68
  5. Step 5: Solve for x
    x = 7,716,114,937,273.68/3,986,410.80
  6. Step 6: Final answer
    x = 1,935,604.56

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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.