Home / 401,920.16-603,171.86-323,975.48

Finding the Fourth Proportional to 401,920.16, 603,171.86 and 323,975.48

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Solution

The fourth proportional to 401,920.16, 603,171.86 and 323,975.48 is: 486,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,920.16 : 603,171.86 = 323,975.48 : x
  2. Step 2: Convert to fraction form
    401,920.16/603,171.86 = 323,975.48/x
  3. Step 3: Cross multiply
    401,920.16x = 603,171.86 × 323,975.48
  4. Step 4: Simplify right side
    401,920.16x = 195,412,888,230.26
  5. Step 5: Solve for x
    x = 195,412,888,230.26/401,920.16
  6. Step 6: Final answer
    x = 486,198.28

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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.