Home / 885,398.40-1,321,192.08-789,972.57

Finding the Fourth Proportional to 885,398.40, 1,321,192.08 and 789,972.57

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Solution

The fourth proportional to 885,398.40, 1,321,192.08 and 789,972.57 is: 1,178,797.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,398.40 : 1,321,192.08 = 789,972.57 : x
  2. Step 2: Convert to fraction form
    885,398.40/1,321,192.08 = 789,972.57/x
  3. Step 3: Cross multiply
    885,398.40x = 1,321,192.08 × 789,972.57
  4. Step 4: Simplify right side
    885,398.40x = 1,043,705,502,901.25
  5. Step 5: Solve for x
    x = 1,043,705,502,901.25/885,398.40
  6. Step 6: Final answer
    x = 1,178,797.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.