Home / 394,097.03-543,287.03-280,722.95

Finding the Fourth Proportional to 394,097.03, 543,287.03 and 280,722.95

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Solution

The fourth proportional to 394,097.03, 543,287.03 and 280,722.95 is: 386,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,097.03 : 543,287.03 = 280,722.95 : x
  2. Step 2: Convert to fraction form
    394,097.03/543,287.03 = 280,722.95/x
  3. Step 3: Cross multiply
    394,097.03x = 543,287.03 × 280,722.95
  4. Step 4: Simplify right side
    394,097.03x = 152,513,137,758.34
  5. Step 5: Solve for x
    x = 152,513,137,758.34/394,097.03
  6. Step 6: Final answer
    x = 386,993.88

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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.