Home / 490,619.52-736,214.82-206,289.48

Finding the Fourth Proportional to 490,619.52, 736,214.82 and 206,289.48

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Solution

The fourth proportional to 490,619.52, 736,214.82 and 206,289.48 is: 309,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,619.52 : 736,214.82 = 206,289.48 : x
  2. Step 2: Convert to fraction form
    490,619.52/736,214.82 = 206,289.48/x
  3. Step 3: Cross multiply
    490,619.52x = 736,214.82 × 206,289.48
  4. Step 4: Simplify right side
    490,619.52x = 151,873,372,386.09
  5. Step 5: Solve for x
    x = 151,873,372,386.09/490,619.52
  6. Step 6: Final answer
    x = 309,554.28

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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.