Home / 1,321,334.28-1,982,296.67-422,829.93

Finding the Fourth Proportional to 1,321,334.28, 1,982,296.67 and 422,829.93

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Solution

The fourth proportional to 1,321,334.28, 1,982,296.67 and 422,829.93 is: 634,339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,334.28 : 1,982,296.67 = 422,829.93 : x
  2. Step 2: Convert to fraction form
    1,321,334.28/1,982,296.67 = 422,829.93/x
  3. Step 3: Cross multiply
    1,321,334.28x = 1,982,296.67 × 422,829.93
  4. Step 4: Simplify right side
    1,321,334.28x = 838,174,367,534.80
  5. Step 5: Solve for x
    x = 838,174,367,534.80/1,321,334.28
  6. Step 6: Final answer
    x = 634,339.38

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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.