Home / 1,393,786.42-2,090,736.34-663,934.46

Finding the Fourth Proportional to 1,393,786.42, 2,090,736.34 and 663,934.46

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Solution

The fourth proportional to 1,393,786.42, 2,090,736.34 and 663,934.46 is: 995,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,786.42 : 2,090,736.34 = 663,934.46 : x
  2. Step 2: Convert to fraction form
    1,393,786.42/2,090,736.34 = 663,934.46/x
  3. Step 3: Cross multiply
    1,393,786.42x = 2,090,736.34 × 663,934.46
  4. Step 4: Simplify right side
    1,393,786.42x = 1,388,111,902,900.28
  5. Step 5: Solve for x
    x = 1,388,111,902,900.28/1,393,786.42
  6. Step 6: Final answer
    x = 995,928.70

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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.