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Finding the Fourth Proportional to 611,497.96, 843,873.09 and 356,799.94

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Solution

The fourth proportional to 611,497.96, 843,873.09 and 356,799.94 is: 492,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,497.96 : 843,873.09 = 356,799.94 : x
  2. Step 2: Convert to fraction form
    611,497.96/843,873.09 = 356,799.94/x
  3. Step 3: Cross multiply
    611,497.96x = 843,873.09 × 356,799.94
  4. Step 4: Simplify right side
    611,497.96x = 301,093,864,431.93
  5. Step 5: Solve for x
    x = 301,093,864,431.93/611,497.96
  6. Step 6: Final answer
    x = 492,387.36

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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.