Home / 378,331.20-566,805.60-307,828.80

Finding the Fourth Proportional to 378,331.20, 566,805.60 and 307,828.80

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Solution

The fourth proportional to 378,331.20, 566,805.60 and 307,828.80 is: 461,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,331.20 : 566,805.60 = 307,828.80 : x
  2. Step 2: Convert to fraction form
    378,331.20/566,805.60 = 307,828.80/x
  3. Step 3: Cross multiply
    378,331.20x = 566,805.60 × 307,828.80
  4. Step 4: Simplify right side
    378,331.20x = 174,479,087,681.28
  5. Step 5: Solve for x
    x = 174,479,087,681.28/378,331.20
  6. Step 6: Final answer
    x = 461,180.81

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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.