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Finding the Fourth Proportional to 419,525.67, 578,946.41 and 228,534.96

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Solution

The fourth proportional to 419,525.67, 578,946.41 and 228,534.96 is: 315,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,525.67 : 578,946.41 = 228,534.96 : x
  2. Step 2: Convert to fraction form
    419,525.67/578,946.41 = 228,534.96/x
  3. Step 3: Cross multiply
    419,525.67x = 578,946.41 × 228,534.96
  4. Step 4: Simplify right side
    419,525.67x = 132,309,495,222.83
  5. Step 5: Solve for x
    x = 132,309,495,222.83/419,525.67
  6. Step 6: Final answer
    x = 315,378.78

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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.