Home / 490,720.26-677,196.80-275,858.44

Finding the Fourth Proportional to 490,720.26, 677,196.80 and 275,858.44

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Solution

The fourth proportional to 490,720.26, 677,196.80 and 275,858.44 is: 380,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,720.26 : 677,196.80 = 275,858.44 : x
  2. Step 2: Convert to fraction form
    490,720.26/677,196.80 = 275,858.44/x
  3. Step 3: Cross multiply
    490,720.26x = 677,196.80 × 275,858.44
  4. Step 4: Simplify right side
    490,720.26x = 186,810,451,441.70
  5. Step 5: Solve for x
    x = 186,810,451,441.70/490,720.26
  6. Step 6: Final answer
    x = 380,686.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.