Home / 1,397,540.46-1,928,674.20-785,885.70

Finding the Fourth Proportional to 1,397,540.46, 1,928,674.20 and 785,885.70

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Solution

The fourth proportional to 1,397,540.46, 1,928,674.20 and 785,885.70 is: 1,084,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,540.46 : 1,928,674.20 = 785,885.70 : x
  2. Step 2: Convert to fraction form
    1,397,540.46/1,928,674.20 = 785,885.70/x
  3. Step 3: Cross multiply
    1,397,540.46x = 1,928,674.20 × 785,885.70
  4. Step 4: Simplify right side
    1,397,540.46x = 1,515,717,473,738.94
  5. Step 5: Solve for x
    x = 1,515,717,473,738.94/1,397,540.46
  6. Step 6: Final answer
    x = 1,084,560.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.