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Finding the Fourth Proportional to 621,884.98, 932,773.74 and 378,663.04

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Solution

The fourth proportional to 621,884.98, 932,773.74 and 378,663.04 is: 567,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,884.98 : 932,773.74 = 378,663.04 : x
  2. Step 2: Convert to fraction form
    621,884.98/932,773.74 = 378,663.04/x
  3. Step 3: Cross multiply
    621,884.98x = 932,773.74 × 378,663.04
  4. Step 4: Simplify right side
    621,884.98x = 353,206,940,020.57
  5. Step 5: Solve for x
    x = 353,206,940,020.57/621,884.98
  6. Step 6: Final answer
    x = 567,961.84

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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.