Home / 1,321,333.91-1,982,296.10-422,829.56

Finding the Fourth Proportional to 1,321,333.91, 1,982,296.10 and 422,829.56

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Solution

The fourth proportional to 1,321,333.91, 1,982,296.10 and 422,829.56 is: 634,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,333.91 : 1,982,296.10 = 422,829.56 : x
  2. Step 2: Convert to fraction form
    1,321,333.91/1,982,296.10 = 422,829.56/x
  3. Step 3: Cross multiply
    1,321,333.91x = 1,982,296.10 × 422,829.56
  4. Step 4: Simplify right side
    1,321,333.91x = 838,173,393,765.53
  5. Step 5: Solve for x
    x = 838,173,393,765.53/1,321,333.91
  6. Step 6: Final answer
    x = 634,338.82

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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.