Home / 3,990,281.42-5,986,262.75-1,294,396.13

Finding the Fourth Proportional to 3,990,281.42, 5,986,262.75 and 1,294,396.13

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Solution

The fourth proportional to 3,990,281.42, 5,986,262.75 and 1,294,396.13 is: 1,941,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,281.42 : 5,986,262.75 = 1,294,396.13 : x
  2. Step 2: Convert to fraction form
    3,990,281.42/5,986,262.75 = 1,294,396.13/x
  3. Step 3: Cross multiply
    3,990,281.42x = 5,986,262.75 × 1,294,396.13
  4. Step 4: Simplify right side
    3,990,281.42x = 7,748,595,300,359.86
  5. Step 5: Solve for x
    x = 7,748,595,300,359.86/3,990,281.42
  6. Step 6: Final answer
    x = 1,941,866.87

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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.