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Finding the Fourth Proportional to 503,549.47, 694,741.75 and 285,722.11

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Solution

The fourth proportional to 503,549.47, 694,741.75 and 285,722.11 is: 394,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,549.47 : 694,741.75 = 285,722.11 : x
  2. Step 2: Convert to fraction form
    503,549.47/694,741.75 = 285,722.11/x
  3. Step 3: Cross multiply
    503,549.47x = 694,741.75 × 285,722.11
  4. Step 4: Simplify right side
    503,549.47x = 198,503,078,715.09
  5. Step 5: Solve for x
    x = 198,503,078,715.09/503,549.47
  6. Step 6: Final answer
    x = 394,207.70

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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.