Home / 1,022.88-1,533.72-406.08

Finding the Fourth Proportional to 1,022.88, 1,533.72 and 406.08

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Solution

The fourth proportional to 1,022.88, 1,533.72 and 406.08 is: 608.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.88 : 1,533.72 = 406.08 : x
  2. Step 2: Convert to fraction form
    1,022.88/1,533.72 = 406.08/x
  3. Step 3: Cross multiply
    1,022.88x = 1,533.72 × 406.08
  4. Step 4: Simplify right side
    1,022.88x = 622,813.02
  5. Step 5: Solve for x
    x = 622,813.02/1,022.88
  6. Step 6: Final answer
    x = 608.88

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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.