Home / 419,956.87-579,543.24-228,973.45

Finding the Fourth Proportional to 419,956.87, 579,543.24 and 228,973.45

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Solution

The fourth proportional to 419,956.87, 579,543.24 and 228,973.45 is: 315,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,956.87 : 579,543.24 = 228,973.45 : x
  2. Step 2: Convert to fraction form
    419,956.87/579,543.24 = 228,973.45/x
  3. Step 3: Cross multiply
    419,956.87x = 579,543.24 × 228,973.45
  4. Step 4: Simplify right side
    419,956.87x = 132,700,015,086.98
  5. Step 5: Solve for x
    x = 132,700,015,086.98/419,956.87
  6. Step 6: Final answer
    x = 315,984.87

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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.