Home / 1,979,920.41-2,969,891.54-717,715.23

Finding the Fourth Proportional to 1,979,920.41, 2,969,891.54 and 717,715.23

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Solution

The fourth proportional to 1,979,920.41, 2,969,891.54 and 717,715.23 is: 1,076,576.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,920.41 : 2,969,891.54 = 717,715.23 : x
  2. Step 2: Convert to fraction form
    1,979,920.41/2,969,891.54 = 717,715.23/x
  3. Step 3: Cross multiply
    1,979,920.41x = 2,969,891.54 × 717,715.23
  4. Step 4: Simplify right side
    1,979,920.41x = 2,131,536,389,706.15
  5. Step 5: Solve for x
    x = 2,131,536,389,706.15/1,979,920.41
  6. Step 6: Final answer
    x = 1,076,576.81

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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.