Home / 439,724.16-659,530.80-187,105.68

Finding the Fourth Proportional to 439,724.16, 659,530.80 and 187,105.68

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Solution

The fourth proportional to 439,724.16, 659,530.80 and 187,105.68 is: 280,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,724.16 : 659,530.80 = 187,105.68 : x
  2. Step 2: Convert to fraction form
    439,724.16/659,530.80 = 187,105.68/x
  3. Step 3: Cross multiply
    439,724.16x = 659,530.80 × 187,105.68
  4. Step 4: Simplify right side
    439,724.16x = 123,401,958,814.94
  5. Step 5: Solve for x
    x = 123,401,958,814.94/439,724.16
  6. Step 6: Final answer
    x = 280,634.93

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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.