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Finding the Fourth Proportional to 639,172.26, 882,028.17 and 367,048.68

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Solution

The fourth proportional to 639,172.26, 882,028.17 and 367,048.68 is: 506,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,172.26 : 882,028.17 = 367,048.68 : x
  2. Step 2: Convert to fraction form
    639,172.26/882,028.17 = 367,048.68/x
  3. Step 3: Cross multiply
    639,172.26x = 882,028.17 × 367,048.68
  4. Step 4: Simplify right side
    639,172.26x = 323,747,275,521.32
  5. Step 5: Solve for x
    x = 323,747,275,521.32/639,172.26
  6. Step 6: Final answer
    x = 506,510.21

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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.