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Finding the Fourth Proportional to 454,989.56, 681,044.86 and 285,924.84

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Solution

The fourth proportional to 454,989.56, 681,044.86 and 285,924.84 is: 427,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,989.56 : 681,044.86 = 285,924.84 : x
  2. Step 2: Convert to fraction form
    454,989.56/681,044.86 = 285,924.84/x
  3. Step 3: Cross multiply
    454,989.56x = 681,044.86 × 285,924.84
  4. Step 4: Simplify right side
    454,989.56x = 194,727,640,431.81
  5. Step 5: Solve for x
    x = 194,727,640,431.81/454,989.56
  6. Step 6: Final answer
    x = 427,982.66

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1.5x scale

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.