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Finding the Fourth Proportional to 578,174.80, 797,861.16 and 320,062.96

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Solution

The fourth proportional to 578,174.80, 797,861.16 and 320,062.96 is: 441,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,174.80 : 797,861.16 = 320,062.96 : x
  2. Step 2: Convert to fraction form
    578,174.80/797,861.16 = 320,062.96/x
  3. Step 3: Cross multiply
    578,174.80x = 797,861.16 × 320,062.96
  4. Step 4: Simplify right side
    578,174.80x = 255,365,804,538.63
  5. Step 5: Solve for x
    x = 255,365,804,538.63/578,174.80
  6. Step 6: Final answer
    x = 441,675.78

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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.