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Finding the Fourth Proportional to 493,203.44, 680,623.08 and 278,352.56

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Solution

The fourth proportional to 493,203.44, 680,623.08 and 278,352.56 is: 384,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,203.44 : 680,623.08 = 278,352.56 : x
  2. Step 2: Convert to fraction form
    493,203.44/680,623.08 = 278,352.56/x
  3. Step 3: Cross multiply
    493,203.44x = 680,623.08 × 278,352.56
  4. Step 4: Simplify right side
    493,203.44x = 189,453,176,713.09
  5. Step 5: Solve for x
    x = 189,453,176,713.09/493,203.44
  6. Step 6: Final answer
    x = 384,127.85

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1.5x scale

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.