Home / 468,090.38-645,983.05-274,471.18

Finding the Fourth Proportional to 468,090.38, 645,983.05 and 274,471.18

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Solution

The fourth proportional to 468,090.38, 645,983.05 and 274,471.18 is: 378,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,090.38 : 645,983.05 = 274,471.18 : x
  2. Step 2: Convert to fraction form
    468,090.38/645,983.05 = 274,471.18/x
  3. Step 3: Cross multiply
    468,090.38x = 645,983.05 × 274,471.18
  4. Step 4: Simplify right side
    468,090.38x = 177,303,727,692.36
  5. Step 5: Solve for x
    x = 177,303,727,692.36/468,090.38
  6. Step 6: Final answer
    x = 378,780.97

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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.