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Finding the Fourth Proportional to 554,345.72, 764,997.16 and 299,696.84

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Solution

The fourth proportional to 554,345.72, 764,997.16 and 299,696.84 is: 413,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,345.72 : 764,997.16 = 299,696.84 : x
  2. Step 2: Convert to fraction form
    554,345.72/764,997.16 = 299,696.84/x
  3. Step 3: Cross multiply
    554,345.72x = 764,997.16 × 299,696.84
  4. Step 4: Simplify right side
    554,345.72x = 229,267,231,460.97
  5. Step 5: Solve for x
    x = 229,267,231,460.97/554,345.72
  6. Step 6: Final answer
    x = 413,581.68

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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.