Home / 1,321,607.58-1,981,441.80-422,531.88

Finding the Fourth Proportional to 1,321,607.58, 1,981,441.80 and 422,531.88

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Solution

The fourth proportional to 1,321,607.58, 1,981,441.80 and 422,531.88 is: 633,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,607.58 : 1,981,441.80 = 422,531.88 : x
  2. Step 2: Convert to fraction form
    1,321,607.58/1,981,441.80 = 422,531.88/x
  3. Step 3: Cross multiply
    1,321,607.58x = 1,981,441.80 × 422,531.88
  4. Step 4: Simplify right side
    1,321,607.58x = 837,222,328,864.58
  5. Step 5: Solve for x
    x = 837,222,328,864.58/1,321,607.58
  6. Step 6: Final answer
    x = 633,487.84

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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.