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Finding the Fourth Proportional to 636,103.66, 952,785.30 and 298,638.63

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Solution

The fourth proportional to 636,103.66, 952,785.30 and 298,638.63 is: 447,314.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,103.66 : 952,785.30 = 298,638.63 : x
  2. Step 2: Convert to fraction form
    636,103.66/952,785.30 = 298,638.63/x
  3. Step 3: Cross multiply
    636,103.66x = 952,785.30 × 298,638.63
  4. Step 4: Simplify right side
    636,103.66x = 284,538,496,676.14
  5. Step 5: Solve for x
    x = 284,538,496,676.14/636,103.66
  6. Step 6: Final answer
    x = 447,314.67

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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.