Home / 859,271.40-1,288,579.05-260,033.40

Finding the Fourth Proportional to 859,271.40, 1,288,579.05 and 260,033.40

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Solution

The fourth proportional to 859,271.40, 1,288,579.05 and 260,033.40 is: 389,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,271.40 : 1,288,579.05 = 260,033.40 : x
  2. Step 2: Convert to fraction form
    859,271.40/1,288,579.05 = 260,033.40/x
  3. Step 3: Cross multiply
    859,271.40x = 1,288,579.05 × 260,033.40
  4. Step 4: Simplify right side
    859,271.40x = 335,073,591,540.27
  5. Step 5: Solve for x
    x = 335,073,591,540.27/859,271.40
  6. Step 6: Final answer
    x = 389,950.83

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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.