Home / 1,321,327.96-1,982,287.28-422,823.65

Finding the Fourth Proportional to 1,321,327.96, 1,982,287.28 and 422,823.65

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Solution

The fourth proportional to 1,321,327.96, 1,982,287.28 and 422,823.65 is: 634,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,327.96 : 1,982,287.28 = 422,823.65 : x
  2. Step 2: Convert to fraction form
    1,321,327.96/1,982,287.28 = 422,823.65/x
  3. Step 3: Cross multiply
    1,321,327.96x = 1,982,287.28 × 422,823.65
  4. Step 4: Simplify right side
    1,321,327.96x = 838,157,934,223.80
  5. Step 5: Solve for x
    x = 838,157,934,223.80/1,321,327.96
  6. Step 6: Final answer
    x = 634,329.98

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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.