Home / 920,064.06-1,379,997.64-321,036.56

Finding the Fourth Proportional to 920,064.06, 1,379,997.64 and 321,036.56

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Solution

The fourth proportional to 920,064.06, 1,379,997.64 and 321,036.56 is: 481,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,064.06 : 1,379,997.64 = 321,036.56 : x
  2. Step 2: Convert to fraction form
    920,064.06/1,379,997.64 = 321,036.56/x
  3. Step 3: Cross multiply
    920,064.06x = 1,379,997.64 × 321,036.56
  4. Step 4: Simplify right side
    920,064.06x = 443,029,695,153.72
  5. Step 5: Solve for x
    x = 443,029,695,153.72/920,064.06
  6. Step 6: Final answer
    x = 481,520.49

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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.