Home / 478,163.20-659,839.44-274,222.72

Finding the Fourth Proportional to 478,163.20, 659,839.44 and 274,222.72

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Solution

The fourth proportional to 478,163.20, 659,839.44 and 274,222.72 is: 378,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,163.20 : 659,839.44 = 274,222.72 : x
  2. Step 2: Convert to fraction form
    478,163.20/659,839.44 = 274,222.72/x
  3. Step 3: Cross multiply
    478,163.20x = 659,839.44 × 274,222.72
  4. Step 4: Simplify right side
    478,163.20x = 180,942,966,000.08
  5. Step 5: Solve for x
    x = 180,942,966,000.08/478,163.20
  6. Step 6: Final answer
    x = 378,412.57

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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.