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Finding the Fourth Proportional to 630,879.92, 946,469.04 and 204,415.04

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Solution

The fourth proportional to 630,879.92, 946,469.04 and 204,415.04 is: 306,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,879.92 : 946,469.04 = 204,415.04 : x
  2. Step 2: Convert to fraction form
    630,879.92/946,469.04 = 204,415.04/x
  3. Step 3: Cross multiply
    630,879.92x = 946,469.04 × 204,415.04
  4. Step 4: Simplify right side
    630,879.92x = 193,472,506,670.36
  5. Step 5: Solve for x
    x = 193,472,506,670.36/630,879.92
  6. Step 6: Final answer
    x = 306,670.89

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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.