Home / 879,204.60-1,318,792.50-280,157.58

Finding the Fourth Proportional to 879,204.60, 1,318,792.50 and 280,157.58

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Solution

The fourth proportional to 879,204.60, 1,318,792.50 and 280,157.58 is: 420,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,204.60 : 1,318,792.50 = 280,157.58 : x
  2. Step 2: Convert to fraction form
    879,204.60/1,318,792.50 = 280,157.58/x
  3. Step 3: Cross multiply
    879,204.60x = 1,318,792.50 × 280,157.58
  4. Step 4: Simplify right side
    879,204.60x = 369,469,715,322.15
  5. Step 5: Solve for x
    x = 369,469,715,322.15/879,204.60
  6. Step 6: Final answer
    x = 420,231.78

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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.