Home / 411,579.60-617,414.76-131,031.60

Finding the Fourth Proportional to 411,579.60, 617,414.76 and 131,031.60

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Solution

The fourth proportional to 411,579.60, 617,414.76 and 131,031.60 is: 196,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,579.60 : 617,414.76 = 131,031.60 : x
  2. Step 2: Convert to fraction form
    411,579.60/617,414.76 = 131,031.60/x
  3. Step 3: Cross multiply
    411,579.60x = 617,414.76 × 131,031.60
  4. Step 4: Simplify right side
    411,579.60x = 80,900,843,866.42
  5. Step 5: Solve for x
    x = 80,900,843,866.42/411,579.60
  6. Step 6: Final answer
    x = 196,561.84

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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.