Home / 372,664.38-557,279.76-276,782.78

Finding the Fourth Proportional to 372,664.38, 557,279.76 and 276,782.78

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Solution

The fourth proportional to 372,664.38, 557,279.76 and 276,782.78 is: 413,899.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,664.38 : 557,279.76 = 276,782.78 : x
  2. Step 2: Convert to fraction form
    372,664.38/557,279.76 = 276,782.78/x
  3. Step 3: Cross multiply
    372,664.38x = 557,279.76 × 276,782.78
  4. Step 4: Simplify right side
    372,664.38x = 154,245,441,210.53
  5. Step 5: Solve for x
    x = 154,245,441,210.53/372,664.38
  6. Step 6: Final answer
    x = 413,899.07

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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.