Home / 419,726.40-579,222.86-228,739.94

Finding the Fourth Proportional to 419,726.40, 579,222.86 and 228,739.94

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Solution

The fourth proportional to 419,726.40, 579,222.86 and 228,739.94 is: 315,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,726.40 : 579,222.86 = 228,739.94 : x
  2. Step 2: Convert to fraction form
    419,726.40/579,222.86 = 228,739.94/x
  3. Step 3: Cross multiply
    419,726.40x = 579,222.86 × 228,739.94
  4. Step 4: Simplify right side
    419,726.40x = 132,491,402,243.03
  5. Step 5: Solve for x
    x = 132,491,402,243.03/419,726.40
  6. Step 6: Final answer
    x = 315,661.35

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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.