Home / 490,910.09-736,578.36-266,429.12

Finding the Fourth Proportional to 490,910.09, 736,578.36 and 266,429.12

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Solution

The fourth proportional to 490,910.09, 736,578.36 and 266,429.12 is: 399,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,910.09 : 736,578.36 = 266,429.12 : x
  2. Step 2: Convert to fraction form
    490,910.09/736,578.36 = 266,429.12/x
  3. Step 3: Cross multiply
    490,910.09x = 736,578.36 × 266,429.12
  4. Step 4: Simplify right side
    490,910.09x = 196,245,920,582.95
  5. Step 5: Solve for x
    x = 196,245,920,582.95/490,910.09
  6. Step 6: Final answer
    x = 399,759.40

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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.