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Finding the Fourth Proportional to 376,428.61, 561,935.23 and 322,540.32

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Solution

The fourth proportional to 376,428.61, 561,935.23 and 322,540.32 is: 481,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,428.61 : 561,935.23 = 322,540.32 : x
  2. Step 2: Convert to fraction form
    376,428.61/561,935.23 = 322,540.32/x
  3. Step 3: Cross multiply
    376,428.61x = 561,935.23 × 322,540.32
  4. Step 4: Simplify right side
    376,428.61x = 181,246,768,097.12
  5. Step 5: Solve for x
    x = 181,246,768,097.12/376,428.61
  6. Step 6: Final answer
    x = 481,490.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.