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Finding the Fourth Proportional to 665,834.94, 998,851.86 and 245,078.82

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Solution

The fourth proportional to 665,834.94, 998,851.86 and 245,078.82 is: 367,654.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,834.94 : 998,851.86 = 245,078.82 : x
  2. Step 2: Convert to fraction form
    665,834.94/998,851.86 = 245,078.82/x
  3. Step 3: Cross multiply
    665,834.94x = 998,851.86 × 245,078.82
  4. Step 4: Simplify right side
    665,834.94x = 244,797,435,203.61
  5. Step 5: Solve for x
    x = 244,797,435,203.61/665,834.94
  6. Step 6: Final answer
    x = 367,654.84

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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.