Home / 372,665.20-558,997.80-279,353.20

Finding the Fourth Proportional to 372,665.20, 558,997.80 and 279,353.20

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Solution

The fourth proportional to 372,665.20, 558,997.80 and 279,353.20 is: 419,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,665.20 : 558,997.80 = 279,353.20 : x
  2. Step 2: Convert to fraction form
    372,665.20/558,997.80 = 279,353.20/x
  3. Step 3: Cross multiply
    372,665.20x = 558,997.80 × 279,353.20
  4. Step 4: Simplify right side
    372,665.20x = 156,157,824,222.96
  5. Step 5: Solve for x
    x = 156,157,824,222.96/372,665.20
  6. Step 6: Final answer
    x = 419,029.80

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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.