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Finding the Fourth Proportional to 554,269.82, 764,892.34 and 299,621

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Solution

The fourth proportional to 554,269.82, 764,892.34 and 299,621 is: 413,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,269.82 : 764,892.34 = 299,621 : x
  2. Step 2: Convert to fraction form
    554,269.82/764,892.34 = 299,621/x
  3. Step 3: Cross multiply
    554,269.82x = 764,892.34 × 299,621
  4. Step 4: Simplify right side
    554,269.82x = 229,177,807,803.14
  5. Step 5: Solve for x
    x = 229,177,807,803.14/554,269.82
  6. Step 6: Final answer
    x = 413,476.97

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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.