Home / 1,310,441.20-1,965,566.94-412,139.86

Finding the Fourth Proportional to 1,310,441.20, 1,965,566.94 and 412,139.86

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Solution

The fourth proportional to 1,310,441.20, 1,965,566.94 and 412,139.86 is: 618,179.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,441.20 : 1,965,566.94 = 412,139.86 : x
  2. Step 2: Convert to fraction form
    1,310,441.20/1,965,566.94 = 412,139.86/x
  3. Step 3: Cross multiply
    1,310,441.20x = 1,965,566.94 × 412,139.86
  4. Step 4: Simplify right side
    1,310,441.20x = 810,088,483,472.23
  5. Step 5: Solve for x
    x = 810,088,483,472.23/1,310,441.20
  6. Step 6: Final answer
    x = 618,179.96

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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.