Home / 518,120.12-777,284.94-218,601.42

Finding the Fourth Proportional to 518,120.12, 777,284.94 and 218,601.42

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Solution

The fourth proportional to 518,120.12, 777,284.94 and 218,601.42 is: 327,946.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,120.12 : 777,284.94 = 218,601.42 : x
  2. Step 2: Convert to fraction form
    518,120.12/777,284.94 = 218,601.42/x
  3. Step 3: Cross multiply
    518,120.12x = 777,284.94 × 218,601.42
  4. Step 4: Simplify right side
    518,120.12x = 169,915,591,628.62
  5. Step 5: Solve for x
    x = 169,915,591,628.62/518,120.12
  6. Step 6: Final answer
    x = 327,946.33

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1.5x scale

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.