Home / 1,321,332.20-1,982,293.66-422,827.90

Finding the Fourth Proportional to 1,321,332.20, 1,982,293.66 and 422,827.90

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Solution

The fourth proportional to 1,321,332.20, 1,982,293.66 and 422,827.90 is: 634,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,332.20 : 1,982,293.66 = 422,827.90 : x
  2. Step 2: Convert to fraction form
    1,321,332.20/1,982,293.66 = 422,827.90/x
  3. Step 3: Cross multiply
    1,321,332.20x = 1,982,293.66 × 422,827.90
  4. Step 4: Simplify right side
    1,321,332.20x = 838,169,065,441.11
  5. Step 5: Solve for x
    x = 838,169,065,441.11/1,321,332.20
  6. Step 6: Final answer
    x = 634,336.37

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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.