Home / 764,072.92-1,054,743.89-515,769.04

Finding the Fourth Proportional to 764,072.92, 1,054,743.89 and 515,769.04

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Solution

The fourth proportional to 764,072.92, 1,054,743.89 and 515,769.04 is: 711,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,072.92 : 1,054,743.89 = 515,769.04 : x
  2. Step 2: Convert to fraction form
    764,072.92/1,054,743.89 = 515,769.04/x
  3. Step 3: Cross multiply
    764,072.92x = 1,054,743.89 × 515,769.04
  4. Step 4: Simplify right side
    764,072.92x = 544,004,243,591.17
  5. Step 5: Solve for x
    x = 544,004,243,591.17/764,072.92
  6. Step 6: Final answer
    x = 711,979.48

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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.