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Finding the Fourth Proportional to 508,503.87, 701,687.39 and 304,551.09

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Solution

The fourth proportional to 508,503.87, 701,687.39 and 304,551.09 is: 420,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,503.87 : 701,687.39 = 304,551.09 : x
  2. Step 2: Convert to fraction form
    508,503.87/701,687.39 = 304,551.09/x
  3. Step 3: Cross multiply
    508,503.87x = 701,687.39 × 304,551.09
  4. Step 4: Simplify right side
    508,503.87x = 213,699,657,941.00
  5. Step 5: Solve for x
    x = 213,699,657,941.00/508,503.87
  6. Step 6: Final answer
    x = 420,251.78

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Double scale
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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.