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Finding the Fourth Proportional to 419,774.91, 579,301.52 and 228,800.67

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Solution

The fourth proportional to 419,774.91, 579,301.52 and 228,800.67 is: 315,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,774.91 : 579,301.52 = 228,800.67 : x
  2. Step 2: Convert to fraction form
    419,774.91/579,301.52 = 228,800.67/x
  3. Step 3: Cross multiply
    419,774.91x = 579,301.52 × 228,800.67
  4. Step 4: Simplify right side
    419,774.91x = 132,544,574,764.02
  5. Step 5: Solve for x
    x = 132,544,574,764.02/419,774.91
  6. Step 6: Final answer
    x = 315,751.54

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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.