Home / 840,694.32-1,160,183.75-478,170.36

Finding the Fourth Proportional to 840,694.32, 1,160,183.75 and 478,170.36

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Solution

The fourth proportional to 840,694.32, 1,160,183.75 and 478,170.36 is: 659,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,694.32 : 1,160,183.75 = 478,170.36 : x
  2. Step 2: Convert to fraction form
    840,694.32/1,160,183.75 = 478,170.36/x
  3. Step 3: Cross multiply
    840,694.32x = 1,160,183.75 × 478,170.36
  4. Step 4: Simplify right side
    840,694.32x = 554,765,479,012.80
  5. Step 5: Solve for x
    x = 554,765,479,012.80/840,694.32
  6. Step 6: Final answer
    x = 659,889.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.