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Finding the Fourth Proportional to 518,298.78, 777,793.77 and 237,671.58

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Solution

The fourth proportional to 518,298.78, 777,793.77 and 237,671.58 is: 356,665.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,298.78 : 777,793.77 = 237,671.58 : x
  2. Step 2: Convert to fraction form
    518,298.78/777,793.77 = 237,671.58/x
  3. Step 3: Cross multiply
    518,298.78x = 777,793.77 × 237,671.58
  4. Step 4: Simplify right side
    518,298.78x = 184,859,469,152.73
  5. Step 5: Solve for x
    x = 184,859,469,152.73/518,298.78
  6. Step 6: Final answer
    x = 356,665.84

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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.