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Finding the Fourth Proportional to 452,785.73, 679,201.86 and 115,829.30

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Solution

The fourth proportional to 452,785.73, 679,201.86 and 115,829.30 is: 173,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,785.73 : 679,201.86 = 115,829.30 : x
  2. Step 2: Convert to fraction form
    452,785.73/679,201.86 = 115,829.30/x
  3. Step 3: Cross multiply
    452,785.73x = 679,201.86 × 115,829.30
  4. Step 4: Simplify right side
    452,785.73x = 78,671,476,002.50
  5. Step 5: Solve for x
    x = 78,671,476,002.50/452,785.73
  6. Step 6: Final answer
    x = 173,749.90

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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.