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Finding the Fourth Proportional to 646,694.34, 892,458.34 and 371,102.66

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Solution

The fourth proportional to 646,694.34, 892,458.34 and 371,102.66 is: 512,133.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,694.34 : 892,458.34 = 371,102.66 : x
  2. Step 2: Convert to fraction form
    646,694.34/892,458.34 = 371,102.66/x
  3. Step 3: Cross multiply
    646,694.34x = 892,458.34 × 371,102.66
  4. Step 4: Simplify right side
    646,694.34x = 331,193,663,913.18
  5. Step 5: Solve for x
    x = 331,193,663,913.18/646,694.34
  6. Step 6: Final answer
    x = 512,133.23

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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.