Home / 490,719.88-736,078.92-153,786.36

Finding the Fourth Proportional to 490,719.88, 736,078.92 and 153,786.36

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Solution

The fourth proportional to 490,719.88, 736,078.92 and 153,786.36 is: 230,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,719.88 : 736,078.92 = 153,786.36 : x
  2. Step 2: Convert to fraction form
    490,719.88/736,078.92 = 153,786.36/x
  3. Step 3: Cross multiply
    490,719.88x = 736,078.92 × 153,786.36
  4. Step 4: Simplify right side
    490,719.88x = 113,198,897,779.53
  5. Step 5: Solve for x
    x = 113,198,897,779.53/490,719.88
  6. Step 6: Final answer
    x = 230,679.26

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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.