Home / 856,539.74-1,284,311.59-324,101.90

Finding the Fourth Proportional to 856,539.74, 1,284,311.59 and 324,101.90

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Solution

The fourth proportional to 856,539.74, 1,284,311.59 and 324,101.90 is: 485,964.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,539.74 : 1,284,311.59 = 324,101.90 : x
  2. Step 2: Convert to fraction form
    856,539.74/1,284,311.59 = 324,101.90/x
  3. Step 3: Cross multiply
    856,539.74x = 1,284,311.59 × 324,101.90
  4. Step 4: Simplify right side
    856,539.74x = 416,247,826,511.02
  5. Step 5: Solve for x
    x = 416,247,826,511.02/856,539.74
  6. Step 6: Final answer
    x = 485,964.41

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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.