Home / 419,526.20-578,963.80-228,550.07

Finding the Fourth Proportional to 419,526.20, 578,963.80 and 228,550.07

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Solution

The fourth proportional to 419,526.20, 578,963.80 and 228,550.07 is: 315,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,526.20 : 578,963.80 = 228,550.07 : x
  2. Step 2: Convert to fraction form
    419,526.20/578,963.80 = 228,550.07/x
  3. Step 3: Cross multiply
    419,526.20x = 578,963.80 × 228,550.07
  4. Step 4: Simplify right side
    419,526.20x = 132,322,218,750.56
  5. Step 5: Solve for x
    x = 132,322,218,750.56/419,526.20
  6. Step 6: Final answer
    x = 315,408.71

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1.5x scale

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.