Home / 3,986,247.20-5,977,894.55-1,289,873.03

Finding the Fourth Proportional to 3,986,247.20, 5,977,894.55 and 1,289,873.03

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Solution

The fourth proportional to 3,986,247.20, 5,977,894.55 and 1,289,873.03 is: 1,934,331.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,247.20 : 5,977,894.55 = 1,289,873.03 : x
  2. Step 2: Convert to fraction form
    3,986,247.20/5,977,894.55 = 1,289,873.03/x
  3. Step 3: Cross multiply
    3,986,247.20x = 5,977,894.55 × 1,289,873.03
  4. Step 4: Simplify right side
    3,986,247.20x = 7,710,724,919,890.15
  5. Step 5: Solve for x
    x = 7,710,724,919,890.15/3,986,247.20
  6. Step 6: Final answer
    x = 1,934,331.85

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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.