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Finding the Fourth Proportional to 446,528.40, 669,781.80 and 268,900.80

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Solution

The fourth proportional to 446,528.40, 669,781.80 and 268,900.80 is: 403,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,528.40 : 669,781.80 = 268,900.80 : x
  2. Step 2: Convert to fraction form
    446,528.40/669,781.80 = 268,900.80/x
  3. Step 3: Cross multiply
    446,528.40x = 669,781.80 × 268,900.80
  4. Step 4: Simplify right side
    446,528.40x = 180,104,861,845.44
  5. Step 5: Solve for x
    x = 180,104,861,845.44/446,528.40
  6. Step 6: Final answer
    x = 403,344.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.