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Finding the Fourth Proportional to 578,696.87, 798,593.01 and 320,573.03

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Solution

The fourth proportional to 578,696.87, 798,593.01 and 320,573.03 is: 442,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,696.87 : 798,593.01 = 320,573.03 : x
  2. Step 2: Convert to fraction form
    578,696.87/798,593.01 = 320,573.03/x
  3. Step 3: Cross multiply
    578,696.87x = 798,593.01 × 320,573.03
  4. Step 4: Simplify right side
    578,696.87x = 256,007,375,757.41
  5. Step 5: Solve for x
    x = 256,007,375,757.41/578,696.87
  6. Step 6: Final answer
    x = 442,385.97

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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.