Home / 379,158.02-522,997.77-288,314.81

Finding the Fourth Proportional to 379,158.02, 522,997.77 and 288,314.81

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Solution

The fourth proportional to 379,158.02, 522,997.77 and 288,314.81 is: 397,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,158.02 : 522,997.77 = 288,314.81 : x
  2. Step 2: Convert to fraction form
    379,158.02/522,997.77 = 288,314.81/x
  3. Step 3: Cross multiply
    379,158.02x = 522,997.77 × 288,314.81
  4. Step 4: Simplify right side
    379,158.02x = 150,788,002,687.97
  5. Step 5: Solve for x
    x = 150,788,002,687.97/379,158.02
  6. Step 6: Final answer
    x = 397,691.71

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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.