Home / 578,487.06-868,290.34-279,178.34

Finding the Fourth Proportional to 578,487.06, 868,290.34 and 279,178.34

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Solution

The fourth proportional to 578,487.06, 868,290.34 and 279,178.34 is: 419,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,487.06 : 868,290.34 = 279,178.34 : x
  2. Step 2: Convert to fraction form
    578,487.06/868,290.34 = 279,178.34/x
  3. Step 3: Cross multiply
    578,487.06x = 868,290.34 × 279,178.34
  4. Step 4: Simplify right side
    578,487.06x = 242,407,855,759.24
  5. Step 5: Solve for x
    x = 242,407,855,759.24/578,487.06
  6. Step 6: Final answer
    x = 419,037.65

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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.