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Finding the Fourth Proportional to 503,249.73, 694,503.74 and 288,431.25

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Solution

The fourth proportional to 503,249.73, 694,503.74 and 288,431.25 is: 398,046.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,249.73 : 694,503.74 = 288,431.25 : x
  2. Step 2: Convert to fraction form
    503,249.73/694,503.74 = 288,431.25/x
  3. Step 3: Cross multiply
    503,249.73x = 694,503.74 × 288,431.25
  4. Step 4: Simplify right side
    503,249.73x = 200,316,581,857.88
  5. Step 5: Solve for x
    x = 200,316,581,857.88/503,249.73
  6. Step 6: Final answer
    x = 398,046.08

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1.5x scale

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.