Home / 403,829.20-605,743.80-325,097.20

Finding the Fourth Proportional to 403,829.20, 605,743.80 and 325,097.20

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Solution

The fourth proportional to 403,829.20, 605,743.80 and 325,097.20 is: 487,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,829.20 : 605,743.80 = 325,097.20 : x
  2. Step 2: Convert to fraction form
    403,829.20/605,743.80 = 325,097.20/x
  3. Step 3: Cross multiply
    403,829.20x = 605,743.80 × 325,097.20
  4. Step 4: Simplify right side
    403,829.20x = 196,925,613,297.36
  5. Step 5: Solve for x
    x = 196,925,613,297.36/403,829.20
  6. Step 6: Final answer
    x = 487,645.80

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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.