Home / 817,975.28-1,226,944.88-218,936.36

Finding the Fourth Proportional to 817,975.28, 1,226,944.88 and 218,936.36

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Solution

The fourth proportional to 817,975.28, 1,226,944.88 and 218,936.36 is: 328,399.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,975.28 : 1,226,944.88 = 218,936.36 : x
  2. Step 2: Convert to fraction form
    817,975.28/1,226,944.88 = 218,936.36/x
  3. Step 3: Cross multiply
    817,975.28x = 1,226,944.88 × 218,936.36
  4. Step 4: Simplify right side
    817,975.28x = 268,622,845,947.84
  5. Step 5: Solve for x
    x = 268,622,845,947.84/817,975.28
  6. Step 6: Final answer
    x = 328,399.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.