Home / 1,022.09-1,410.48-629.01

Finding the Fourth Proportional to 1,022.09, 1,410.48 and 629.01

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Solution

The fourth proportional to 1,022.09, 1,410.48 and 629.01 is: 868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.09 : 1,410.48 = 629.01 : x
  2. Step 2: Convert to fraction form
    1,022.09/1,410.48 = 629.01/x
  3. Step 3: Cross multiply
    1,022.09x = 1,410.48 × 629.01
  4. Step 4: Simplify right side
    1,022.09x = 887,206.02
  5. Step 5: Solve for x
    x = 887,206.02/1,022.09
  6. Step 6: Final answer
    x = 868.04

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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.