Home / 643,016.15-964,327.22-444,611.51

Finding the Fourth Proportional to 643,016.15, 964,327.22 and 444,611.51

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Solution

The fourth proportional to 643,016.15, 964,327.22 and 444,611.51 is: 666,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,016.15 : 964,327.22 = 444,611.51 : x
  2. Step 2: Convert to fraction form
    643,016.15/964,327.22 = 444,611.51/x
  3. Step 3: Cross multiply
    643,016.15x = 964,327.22 × 444,611.51
  4. Step 4: Simplify right side
    643,016.15x = 428,750,976,596.67
  5. Step 5: Solve for x
    x = 428,750,976,596.67/643,016.15
  6. Step 6: Final answer
    x = 666,781.04

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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.