Home / 419,498.28-578,904.66-228,511.08

Finding the Fourth Proportional to 419,498.28, 578,904.66 and 228,511.08

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Solution

The fourth proportional to 419,498.28, 578,904.66 and 228,511.08 is: 315,343.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,498.28 : 578,904.66 = 228,511.08 : x
  2. Step 2: Convert to fraction form
    419,498.28/578,904.66 = 228,511.08/x
  3. Step 3: Cross multiply
    419,498.28x = 578,904.66 × 228,511.08
  4. Step 4: Simplify right side
    419,498.28x = 132,286,129,073.63
  5. Step 5: Solve for x
    x = 132,286,129,073.63/419,498.28
  6. Step 6: Final answer
    x = 315,343.67

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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.