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Finding the Fourth Proportional to 520,558.62, 780,930.54 and 183,794.80

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Solution

The fourth proportional to 520,558.62, 780,930.54 and 183,794.80 is: 275,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,558.62 : 780,930.54 = 183,794.80 : x
  2. Step 2: Convert to fraction form
    520,558.62/780,930.54 = 183,794.80/x
  3. Step 3: Cross multiply
    520,558.62x = 780,930.54 × 183,794.80
  4. Step 4: Simplify right side
    520,558.62x = 143,530,970,245.67
  5. Step 5: Solve for x
    x = 143,530,970,245.67/520,558.62
  6. Step 6: Final answer
    x = 275,724.89

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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.