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Finding the Fourth Proportional to 503,551.47, 694,744.51 and 285,724.11

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Solution

The fourth proportional to 503,551.47, 694,744.51 and 285,724.11 is: 394,210.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,551.47 : 694,744.51 = 285,724.11 : x
  2. Step 2: Convert to fraction form
    503,551.47/694,744.51 = 285,724.11/x
  3. Step 3: Cross multiply
    503,551.47x = 694,744.51 × 285,724.11
  4. Step 4: Simplify right side
    503,551.47x = 198,505,256,797.14
  5. Step 5: Solve for x
    x = 198,505,256,797.14/503,551.47
  6. Step 6: Final answer
    x = 394,210.46

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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.