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Finding the Fourth Proportional to 462,399.17, 637,696.13 and 385,131.38

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Solution

The fourth proportional to 462,399.17, 637,696.13 and 385,131.38 is: 531,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,399.17 : 637,696.13 = 385,131.38 : x
  2. Step 2: Convert to fraction form
    462,399.17/637,696.13 = 385,131.38/x
  3. Step 3: Cross multiply
    462,399.17x = 637,696.13 × 385,131.38
  4. Step 4: Simplify right side
    462,399.17x = 245,596,785,453.42
  5. Step 5: Solve for x
    x = 245,596,785,453.42/462,399.17
  6. Step 6: Final answer
    x = 531,135.88

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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.