Home / 419,726.87-579,206.19-228,736.16

Finding the Fourth Proportional to 419,726.87, 579,206.19 and 228,736.16

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Solution

The fourth proportional to 419,726.87, 579,206.19 and 228,736.16 is: 315,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,726.87 : 579,206.19 = 228,736.16 : x
  2. Step 2: Convert to fraction form
    419,726.87/579,206.19 = 228,736.16/x
  3. Step 3: Cross multiply
    419,726.87x = 579,206.19 × 228,736.16
  4. Step 4: Simplify right side
    419,726.87x = 132,485,400,053.17
  5. Step 5: Solve for x
    x = 132,485,400,053.17/419,726.87
  6. Step 6: Final answer
    x = 315,646.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.