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Finding the Fourth Proportional to 503,668.61, 695,027.59 and 285,881.74

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Solution

The fourth proportional to 503,668.61, 695,027.59 and 285,881.74 is: 394,496.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,668.61 : 695,027.59 = 285,881.74 : x
  2. Step 2: Convert to fraction form
    503,668.61/695,027.59 = 285,881.74/x
  3. Step 3: Cross multiply
    503,668.61x = 695,027.59 × 285,881.74
  4. Step 4: Simplify right side
    503,668.61x = 198,695,694,667.96
  5. Step 5: Solve for x
    x = 198,695,694,667.96/503,668.61
  6. Step 6: Final answer
    x = 394,496.88

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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.