Home / 859,854.88-1,289,785.29-260,821.18

Finding the Fourth Proportional to 859,854.88, 1,289,785.29 and 260,821.18

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Solution

The fourth proportional to 859,854.88, 1,289,785.29 and 260,821.18 is: 391,232.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,854.88 : 1,289,785.29 = 260,821.18 : x
  2. Step 2: Convert to fraction form
    859,854.88/1,289,785.29 = 260,821.18/x
  3. Step 3: Cross multiply
    859,854.88x = 1,289,785.29 × 260,821.18
  4. Step 4: Simplify right side
    859,854.88x = 336,403,321,284.44
  5. Step 5: Solve for x
    x = 336,403,321,284.44/859,854.88
  6. Step 6: Final answer
    x = 391,232.67

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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.