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Finding the Fourth Proportional to 493,254.97, 680,659.71 and 278,365.82

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Solution

The fourth proportional to 493,254.97, 680,659.71 and 278,365.82 is: 384,126.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,254.97 : 680,659.71 = 278,365.82 : x
  2. Step 2: Convert to fraction form
    493,254.97/680,659.71 = 278,365.82/x
  3. Step 3: Cross multiply
    493,254.97x = 680,659.71 × 278,365.82
  4. Step 4: Simplify right side
    493,254.97x = 189,472,393,867.94
  5. Step 5: Solve for x
    x = 189,472,393,867.94/493,254.97
  6. Step 6: Final answer
    x = 384,126.68

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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.