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Finding the Fourth Proportional to 630,818.80, 946,379.56 and 210,098.48

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Solution

The fourth proportional to 630,818.80, 946,379.56 and 210,098.48 is: 315,198.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,818.80 : 946,379.56 = 210,098.48 : x
  2. Step 2: Convert to fraction form
    630,818.80/946,379.56 = 210,098.48/x
  3. Step 3: Cross multiply
    630,818.80x = 946,379.56 × 210,098.48
  4. Step 4: Simplify right side
    630,818.80x = 198,832,907,059.07
  5. Step 5: Solve for x
    x = 198,832,907,059.07/630,818.80
  6. Step 6: Final answer
    x = 315,198.13

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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.