Home / 578,484.82-868,286.96-279,176.10

Finding the Fourth Proportional to 578,484.82, 868,286.96 and 279,176.10

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Solution

The fourth proportional to 578,484.82, 868,286.96 and 279,176.10 is: 419,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,484.82 : 868,286.96 = 279,176.10 : x
  2. Step 2: Convert to fraction form
    578,484.82/868,286.96 = 279,176.10/x
  3. Step 3: Cross multiply
    578,484.82x = 868,286.96 × 279,176.10
  4. Step 4: Simplify right side
    578,484.82x = 242,404,967,173.66
  5. Step 5: Solve for x
    x = 242,404,967,173.66/578,484.82
  6. Step 6: Final answer
    x = 419,034.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.