Home / 1,321,829.64-1,824,136.02-718,217.64

Finding the Fourth Proportional to 1,321,829.64, 1,824,136.02 and 718,217.64

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Solution

The fourth proportional to 1,321,829.64, 1,824,136.02 and 718,217.64 is: 991,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,829.64 : 1,824,136.02 = 718,217.64 : x
  2. Step 2: Convert to fraction form
    1,321,829.64/1,824,136.02 = 718,217.64/x
  3. Step 3: Cross multiply
    1,321,829.64x = 1,824,136.02 × 718,217.64
  4. Step 4: Simplify right side
    1,321,829.64x = 1,310,126,667,323.39
  5. Step 5: Solve for x
    x = 1,310,126,667,323.39/1,321,829.64
  6. Step 6: Final answer
    x = 991,146.38

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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.