Home / 390,037.80-584,057.92-269,928.48

Finding the Fourth Proportional to 390,037.80, 584,057.92 and 269,928.48

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Solution

The fourth proportional to 390,037.80, 584,057.92 and 269,928.48 is: 404,201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,037.80 : 584,057.92 = 269,928.48 : x
  2. Step 2: Convert to fraction form
    390,037.80/584,057.92 = 269,928.48/x
  3. Step 3: Cross multiply
    390,037.80x = 584,057.92 × 269,928.48
  4. Step 4: Simplify right side
    390,037.80x = 157,653,866,577.56
  5. Step 5: Solve for x
    x = 157,653,866,577.56/390,037.80
  6. Step 6: Final answer
    x = 404,201.51

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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.