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Finding the Fourth Proportional to 796,387.14, 1,098,978.79 and 465,273.76

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Solution

The fourth proportional to 796,387.14, 1,098,978.79 and 465,273.76 is: 642,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    796,387.14 : 1,098,978.79 = 465,273.76 : x
  2. Step 2: Convert to fraction form
    796,387.14/1,098,978.79 = 465,273.76/x
  3. Step 3: Cross multiply
    796,387.14x = 1,098,978.79 × 465,273.76
  4. Step 4: Simplify right side
    796,387.14x = 511,325,993,783.55
  5. Step 5: Solve for x
    x = 511,325,993,783.55/796,387.14
  6. Step 6: Final answer
    x = 642,057.07

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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.