Home / 1,321,337.73-1,982,301.93-422,833.40

Finding the Fourth Proportional to 1,321,337.73, 1,982,301.93 and 422,833.40

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Solution

The fourth proportional to 1,321,337.73, 1,982,301.93 and 422,833.40 is: 634,344.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,337.73 : 1,982,301.93 = 422,833.40 : x
  2. Step 2: Convert to fraction form
    1,321,337.73/1,982,301.93 = 422,833.40/x
  3. Step 3: Cross multiply
    1,321,337.73x = 1,982,301.93 × 422,833.40
  4. Step 4: Simplify right side
    1,321,337.73x = 838,183,464,888.46
  5. Step 5: Solve for x
    x = 838,183,464,888.46/1,321,337.73
  6. Step 6: Final answer
    x = 634,344.61

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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.