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Finding the Fourth Proportional to 647,034.33, 892,910.91 and 375,263.38

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Solution

The fourth proportional to 647,034.33, 892,910.91 and 375,263.38 is: 517,865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,034.33 : 892,910.91 = 375,263.38 : x
  2. Step 2: Convert to fraction form
    647,034.33/892,910.91 = 375,263.38/x
  3. Step 3: Cross multiply
    647,034.33x = 892,910.91 × 375,263.38
  4. Step 4: Simplify right side
    647,034.33x = 335,076,766,125.48
  5. Step 5: Solve for x
    x = 335,076,766,125.48/647,034.33
  6. Step 6: Final answer
    x = 517,865.51

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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.