Home / 520,823.20-718,732.56-294,469.60

Finding the Fourth Proportional to 520,823.20, 718,732.56 and 294,469.60

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Solution

The fourth proportional to 520,823.20, 718,732.56 and 294,469.60 is: 406,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,823.20 : 718,732.56 = 294,469.60 : x
  2. Step 2: Convert to fraction form
    520,823.20/718,732.56 = 294,469.60/x
  3. Step 3: Cross multiply
    520,823.20x = 718,732.56 × 294,469.60
  4. Step 4: Simplify right side
    520,823.20x = 211,644,889,450.18
  5. Step 5: Solve for x
    x = 211,644,889,450.18/520,823.20
  6. Step 6: Final answer
    x = 406,366.09

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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.