Home / 419,618.74-579,066.57-228,633.70

Finding the Fourth Proportional to 419,618.74, 579,066.57 and 228,633.70

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Solution

The fourth proportional to 419,618.74, 579,066.57 and 228,633.70 is: 315,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,618.74 : 579,066.57 = 228,633.70 : x
  2. Step 2: Convert to fraction form
    419,618.74/579,066.57 = 228,633.70/x
  3. Step 3: Cross multiply
    419,618.74x = 579,066.57 × 228,633.70
  4. Step 4: Simplify right side
    419,618.74x = 132,394,132,445.41
  5. Step 5: Solve for x
    x = 132,394,132,445.41/419,618.74
  6. Step 6: Final answer
    x = 315,510.53

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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.