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Finding the Fourth Proportional to 646,732.02, 892,499.49 and 371,134.80

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Solution

The fourth proportional to 646,732.02, 892,499.49 and 371,134.80 is: 512,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,732.02 : 892,499.49 = 371,134.80 : x
  2. Step 2: Convert to fraction form
    646,732.02/892,499.49 = 371,134.80/x
  3. Step 3: Cross multiply
    646,732.02x = 892,499.49 × 371,134.80
  4. Step 4: Simplify right side
    646,732.02x = 331,237,619,721.25
  5. Step 5: Solve for x
    x = 331,237,619,721.25/646,732.02
  6. Step 6: Final answer
    x = 512,171.36

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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.