Home / 1,310,482.56-1,965,722.16-412,002.72

Finding the Fourth Proportional to 1,310,482.56, 1,965,722.16 and 412,002.72

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Solution

The fourth proportional to 1,310,482.56, 1,965,722.16 and 412,002.72 is: 618,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,482.56 : 1,965,722.16 = 412,002.72 : x
  2. Step 2: Convert to fraction form
    1,310,482.56/1,965,722.16 = 412,002.72/x
  3. Step 3: Cross multiply
    1,310,482.56x = 1,965,722.16 × 412,002.72
  4. Step 4: Simplify right side
    1,310,482.56x = 809,882,876,684.28
  5. Step 5: Solve for x
    x = 809,882,876,684.28/1,310,482.56
  6. Step 6: Final answer
    x = 618,003.55

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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.