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Finding the Fourth Proportional to 576,559.86, 864,842.86 and 378,136.77

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Solution

The fourth proportional to 576,559.86, 864,842.86 and 378,136.77 is: 567,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,559.86 : 864,842.86 = 378,136.77 : x
  2. Step 2: Convert to fraction form
    576,559.86/864,842.86 = 378,136.77/x
  3. Step 3: Cross multiply
    576,559.86x = 864,842.86 × 378,136.77
  4. Step 4: Simplify right side
    576,559.86x = 327,028,883,747.28
  5. Step 5: Solve for x
    x = 327,028,883,747.28/576,559.86
  6. Step 6: Final answer
    x = 567,207.17

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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.