Home / 840,947.86-1,261,546.62-272,138.32

Finding the Fourth Proportional to 840,947.86, 1,261,546.62 and 272,138.32

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Solution

The fourth proportional to 840,947.86, 1,261,546.62 and 272,138.32 is: 408,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,947.86 : 1,261,546.62 = 272,138.32 : x
  2. Step 2: Convert to fraction form
    840,947.86/1,261,546.62 = 272,138.32/x
  3. Step 3: Cross multiply
    840,947.86x = 1,261,546.62 × 272,138.32
  4. Step 4: Simplify right side
    840,947.86x = 343,315,177,768.48
  5. Step 5: Solve for x
    x = 343,315,177,768.48/840,947.86
  6. Step 6: Final answer
    x = 408,247.88

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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.