Home / 859,931.82-1,289,893.68-220,234.32

Finding the Fourth Proportional to 859,931.82, 1,289,893.68 and 220,234.32

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Solution

The fourth proportional to 859,931.82, 1,289,893.68 and 220,234.32 is: 330,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,931.82 : 1,289,893.68 = 220,234.32 : x
  2. Step 2: Convert to fraction form
    859,931.82/1,289,893.68 = 220,234.32/x
  3. Step 3: Cross multiply
    859,931.82x = 1,289,893.68 × 220,234.32
  4. Step 4: Simplify right side
    859,931.82x = 284,078,857,487.10
  5. Step 5: Solve for x
    x = 284,078,857,487.10/859,931.82
  6. Step 6: Final answer
    x = 330,350.44

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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.