Home / 859,867.20-1,289,803.92-260,833.60

Finding the Fourth Proportional to 859,867.20, 1,289,803.92 and 260,833.60

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Solution

The fourth proportional to 859,867.20, 1,289,803.92 and 260,833.60 is: 391,251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,867.20 : 1,289,803.92 = 260,833.60 : x
  2. Step 2: Convert to fraction form
    859,867.20/1,289,803.92 = 260,833.60/x
  3. Step 3: Cross multiply
    859,867.20x = 1,289,803.92 × 260,833.60
  4. Step 4: Simplify right side
    859,867.20x = 336,424,199,747.71
  5. Step 5: Solve for x
    x = 336,424,199,747.71/859,867.20
  6. Step 6: Final answer
    x = 391,251.35

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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.