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Finding the Fourth Proportional to 616,390.27, 850,619.72 and 344,458.16

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Solution

The fourth proportional to 616,390.27, 850,619.72 and 344,458.16 is: 475,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,390.27 : 850,619.72 = 344,458.16 : x
  2. Step 2: Convert to fraction form
    616,390.27/850,619.72 = 344,458.16/x
  3. Step 3: Cross multiply
    616,390.27x = 850,619.72 × 344,458.16
  4. Step 4: Simplify right side
    616,390.27x = 293,002,904,015.17
  5. Step 5: Solve for x
    x = 293,002,904,015.17/616,390.27
  6. Step 6: Final answer
    x = 475,352.90

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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.