Home / 859,936.32-1,289,900.42-220,238.84

Finding the Fourth Proportional to 859,936.32, 1,289,900.42 and 220,238.84

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Solution

The fourth proportional to 859,936.32, 1,289,900.42 and 220,238.84 is: 330,357.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,936.32 : 1,289,900.42 = 220,238.84 : x
  2. Step 2: Convert to fraction form
    859,936.32/1,289,900.42 = 220,238.84/x
  3. Step 3: Cross multiply
    859,936.32x = 1,289,900.42 × 220,238.84
  4. Step 4: Simplify right side
    859,936.32x = 284,086,172,216.31
  5. Step 5: Solve for x
    x = 284,086,172,216.31/859,936.32
  6. Step 6: Final answer
    x = 330,357.22

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1.5x scale

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.