Home / 419,288.10-578,627.98-228,311.96

Finding the Fourth Proportional to 419,288.10, 578,627.98 and 228,311.96

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Solution

The fourth proportional to 419,288.10, 578,627.98 and 228,311.96 is: 315,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,288.10 : 578,627.98 = 228,311.96 : x
  2. Step 2: Convert to fraction form
    419,288.10/578,627.98 = 228,311.96/x
  3. Step 3: Cross multiply
    419,288.10x = 578,627.98 × 228,311.96
  4. Step 4: Simplify right side
    419,288.10x = 132,107,688,224.64
  5. Step 5: Solve for x
    x = 132,107,688,224.64/419,288.10
  6. Step 6: Final answer
    x = 315,076.17

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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.