Home / 1,022.28-1,410.80-580.12

Finding the Fourth Proportional to 1,022.28, 1,410.80 and 580.12

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Solution

The fourth proportional to 1,022.28, 1,410.80 and 580.12 is: 800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.28 : 1,410.80 = 580.12 : x
  2. Step 2: Convert to fraction form
    1,022.28/1,410.80 = 580.12/x
  3. Step 3: Cross multiply
    1,022.28x = 1,410.80 × 580.12
  4. Step 4: Simplify right side
    1,022.28x = 818,433.30
  5. Step 5: Solve for x
    x = 818,433.30/1,022.28
  6. Step 6: Final answer
    x = 800.60

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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.