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Finding the Fourth Proportional to 415,161.62, 620,467.71 and 303,077.86

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Solution

The fourth proportional to 415,161.62, 620,467.71 and 303,077.86 is: 452,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,161.62 : 620,467.71 = 303,077.86 : x
  2. Step 2: Convert to fraction form
    415,161.62/620,467.71 = 303,077.86/x
  3. Step 3: Cross multiply
    415,161.62x = 620,467.71 × 303,077.86
  4. Step 4: Simplify right side
    415,161.62x = 188,050,025,745.90
  5. Step 5: Solve for x
    x = 188,050,025,745.90/415,161.62
  6. Step 6: Final answer
    x = 452,956.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.