Home / 839,231.20-1,258,846.80-419,327.20

Finding the Fourth Proportional to 839,231.20, 1,258,846.80 and 419,327.20

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Solution

The fourth proportional to 839,231.20, 1,258,846.80 and 419,327.20 is: 628,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,231.20 : 1,258,846.80 = 419,327.20 : x
  2. Step 2: Convert to fraction form
    839,231.20/1,258,846.80 = 419,327.20/x
  3. Step 3: Cross multiply
    839,231.20x = 1,258,846.80 × 419,327.20
  4. Step 4: Simplify right side
    839,231.20x = 527,868,703,872.96
  5. Step 5: Solve for x
    x = 527,868,703,872.96/839,231.20
  6. Step 6: Final answer
    x = 628,990.80

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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.