Home / 638,273.21-957,551.72-278,502.26

Finding the Fourth Proportional to 638,273.21, 957,551.72 and 278,502.26

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Solution

The fourth proportional to 638,273.21, 957,551.72 and 278,502.26 is: 417,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,273.21 : 957,551.72 = 278,502.26 : x
  2. Step 2: Convert to fraction form
    638,273.21/957,551.72 = 278,502.26/x
  3. Step 3: Cross multiply
    638,273.21x = 957,551.72 × 278,502.26
  4. Step 4: Simplify right side
    638,273.21x = 266,680,311,906.62
  5. Step 5: Solve for x
    x = 266,680,311,906.62/638,273.21
  6. Step 6: Final answer
    x = 417,815.30

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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.