Home / 419,101.08-578,359.38-228,115.77

Finding the Fourth Proportional to 419,101.08, 578,359.38 and 228,115.77

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Solution

The fourth proportional to 419,101.08, 578,359.38 and 228,115.77 is: 314,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,101.08 : 578,359.38 = 228,115.77 : x
  2. Step 2: Convert to fraction form
    419,101.08/578,359.38 = 228,115.77/x
  3. Step 3: Cross multiply
    419,101.08x = 578,359.38 × 228,115.77
  4. Step 4: Simplify right side
    419,101.08x = 131,932,895,305.42
  5. Step 5: Solve for x
    x = 131,932,895,305.42/419,101.08
  6. Step 6: Final answer
    x = 314,799.70

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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.