Home / 447,208.26-670,812.39-306,540.42

Finding the Fourth Proportional to 447,208.26, 670,812.39 and 306,540.42

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Solution

The fourth proportional to 447,208.26, 670,812.39 and 306,540.42 is: 459,810.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,208.26 : 670,812.39 = 306,540.42 : x
  2. Step 2: Convert to fraction form
    447,208.26/670,812.39 = 306,540.42/x
  3. Step 3: Cross multiply
    447,208.26x = 670,812.39 × 306,540.42
  4. Step 4: Simplify right side
    447,208.26x = 205,631,111,771.80
  5. Step 5: Solve for x
    x = 205,631,111,771.80/447,208.26
  6. Step 6: Final answer
    x = 459,810.63

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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.