Home / 578,915.04-868,667.76-279,650.82

Finding the Fourth Proportional to 578,915.04, 868,667.76 and 279,650.82

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Solution

The fourth proportional to 578,915.04, 868,667.76 and 279,650.82 is: 419,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,915.04 : 868,667.76 = 279,650.82 : x
  2. Step 2: Convert to fraction form
    578,915.04/868,667.76 = 279,650.82/x
  3. Step 3: Cross multiply
    578,915.04x = 868,667.76 × 279,650.82
  4. Step 4: Simplify right side
    578,915.04x = 242,923,651,391.56
  5. Step 5: Solve for x
    x = 242,923,651,391.56/578,915.04
  6. Step 6: Final answer
    x = 419,618.83

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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.