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Finding the Fourth Proportional to 589,990.52, 814,185.42 and 321,718.52

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Solution

The fourth proportional to 589,990.52, 814,185.42 and 321,718.52 is: 443,970.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,990.52 : 814,185.42 = 321,718.52 : x
  2. Step 2: Convert to fraction form
    589,990.52/814,185.42 = 321,718.52/x
  3. Step 3: Cross multiply
    589,990.52x = 814,185.42 × 321,718.52
  4. Step 4: Simplify right side
    589,990.52x = 261,938,528,327.98
  5. Step 5: Solve for x
    x = 261,938,528,327.98/589,990.52
  6. Step 6: Final answer
    x = 443,970.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.