Home / 874,157.60-1,311,236.40-865,863.20

Finding the Fourth Proportional to 874,157.60, 1,311,236.40 and 865,863.20

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Solution

The fourth proportional to 874,157.60, 1,311,236.40 and 865,863.20 is: 1,298,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,157.60 : 1,311,236.40 = 865,863.20 : x
  2. Step 2: Convert to fraction form
    874,157.60/1,311,236.40 = 865,863.20/x
  3. Step 3: Cross multiply
    874,157.60x = 1,311,236.40 × 865,863.20
  4. Step 4: Simplify right side
    874,157.60x = 1,135,351,345,260.48
  5. Step 5: Solve for x
    x = 1,135,351,345,260.48/874,157.60
  6. Step 6: Final answer
    x = 1,298,794.80

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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.