Home / 419,214.52-578,497.89-228,228.58

Finding the Fourth Proportional to 419,214.52, 578,497.89 and 228,228.58

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Solution

The fourth proportional to 419,214.52, 578,497.89 and 228,228.58 is: 314,945.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,214.52 : 578,497.89 = 228,228.58 : x
  2. Step 2: Convert to fraction form
    419,214.52/578,497.89 = 228,228.58/x
  3. Step 3: Cross multiply
    419,214.52x = 578,497.89 × 228,228.58
  4. Step 4: Simplify right side
    419,214.52x = 132,029,751,967.70
  5. Step 5: Solve for x
    x = 132,029,751,967.70/419,214.52
  6. Step 6: Final answer
    x = 314,945.56

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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.