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Finding the Fourth Proportional to 503,751.60, 695,001.36 and 285,934.32

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Solution

The fourth proportional to 503,751.60, 695,001.36 and 285,934.32 is: 394,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,751.60 : 695,001.36 = 285,934.32 : x
  2. Step 2: Convert to fraction form
    503,751.60/695,001.36 = 285,934.32/x
  3. Step 3: Cross multiply
    503,751.60x = 695,001.36 × 285,934.32
  4. Step 4: Simplify right side
    503,751.60x = 198,724,741,270.68
  5. Step 5: Solve for x
    x = 198,724,741,270.68/503,751.60
  6. Step 6: Final answer
    x = 394,489.55

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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.