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Finding the Fourth Proportional to 616,391.01, 850,620.75 and 344,458.91

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Solution

The fourth proportional to 616,391.01, 850,620.75 and 344,458.91 is: 475,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,391.01 : 850,620.75 = 344,458.91 : x
  2. Step 2: Convert to fraction form
    616,391.01/850,620.75 = 344,458.91/x
  3. Step 3: Cross multiply
    616,391.01x = 850,620.75 × 344,458.91
  4. Step 4: Simplify right side
    616,391.01x = 293,003,892,115.28
  5. Step 5: Solve for x
    x = 293,003,892,115.28/616,391.01
  6. Step 6: Final answer
    x = 475,353.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.