Home / 499,836.75-689,757.57-285,045.96

Finding the Fourth Proportional to 499,836.75, 689,757.57 and 285,045.96

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Solution

The fourth proportional to 499,836.75, 689,757.57 and 285,045.96 is: 393,353.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,836.75 : 689,757.57 = 285,045.96 : x
  2. Step 2: Convert to fraction form
    499,836.75/689,757.57 = 285,045.96/x
  3. Step 3: Cross multiply
    499,836.75x = 689,757.57 × 285,045.96
  4. Step 4: Simplify right side
    499,836.75x = 196,612,608,707.92
  5. Step 5: Solve for x
    x = 196,612,608,707.92/499,836.75
  6. Step 6: Final answer
    x = 393,353.65

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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.