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Finding the Fourth Proportional to 493,966.53, 681,656.46 and 279,101.98

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Solution

The fourth proportional to 493,966.53, 681,656.46 and 279,101.98 is: 385,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,966.53 : 681,656.46 = 279,101.98 : x
  2. Step 2: Convert to fraction form
    493,966.53/681,656.46 = 279,101.98/x
  3. Step 3: Cross multiply
    493,966.53x = 681,656.46 × 279,101.98
  4. Step 4: Simplify right side
    493,966.53x = 190,251,667,124.02
  5. Step 5: Solve for x
    x = 190,251,667,124.02/493,966.53
  6. Step 6: Final answer
    x = 385,150.93

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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.