Home / 449,822.73-674,865.05-212,839.41

Finding the Fourth Proportional to 449,822.73, 674,865.05 and 212,839.41

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Solution

The fourth proportional to 449,822.73, 674,865.05 and 212,839.41 is: 319,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,822.73 : 674,865.05 = 212,839.41 : x
  2. Step 2: Convert to fraction form
    449,822.73/674,865.05 = 212,839.41/x
  3. Step 3: Cross multiply
    449,822.73x = 674,865.05 × 212,839.41
  4. Step 4: Simplify right side
    449,822.73x = 143,637,878,007.42
  5. Step 5: Solve for x
    x = 143,637,878,007.42/449,822.73
  6. Step 6: Final answer
    x = 319,321.08

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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.