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Finding the Fourth Proportional to 621,920.43, 932,877.63 and 242,879.67

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Solution

The fourth proportional to 621,920.43, 932,877.63 and 242,879.67 is: 364,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,920.43 : 932,877.63 = 242,879.67 : x
  2. Step 2: Convert to fraction form
    621,920.43/932,877.63 = 242,879.67/x
  3. Step 3: Cross multiply
    621,920.43x = 932,877.63 × 242,879.67
  4. Step 4: Simplify right side
    621,920.43x = 226,577,010,924.78
  5. Step 5: Solve for x
    x = 226,577,010,924.78/621,920.43
  6. Step 6: Final answer
    x = 364,318.33

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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.