Home / 578,485.57-868,288.09-279,176.85

Finding the Fourth Proportional to 578,485.57, 868,288.09 and 279,176.85

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Solution

The fourth proportional to 578,485.57, 868,288.09 and 279,176.85 is: 419,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,485.57 : 868,288.09 = 279,176.85 : x
  2. Step 2: Convert to fraction form
    578,485.57/868,288.09 = 279,176.85/x
  3. Step 3: Cross multiply
    578,485.57x = 868,288.09 × 279,176.85
  4. Step 4: Simplify right side
    578,485.57x = 242,405,933,858.72
  5. Step 5: Solve for x
    x = 242,405,933,858.72/578,485.57
  6. Step 6: Final answer
    x = 419,035.40

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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.