Home / 693,138.40-1,040,096.40-293,711.20

Finding the Fourth Proportional to 693,138.40, 1,040,096.40 and 293,711.20

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Solution

The fourth proportional to 693,138.40, 1,040,096.40 and 293,711.20 is: 440,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,138.40 : 1,040,096.40 = 293,711.20 : x
  2. Step 2: Convert to fraction form
    693,138.40/1,040,096.40 = 293,711.20/x
  3. Step 3: Cross multiply
    693,138.40x = 1,040,096.40 × 293,711.20
  4. Step 4: Simplify right side
    693,138.40x = 305,487,961,759.68
  5. Step 5: Solve for x
    x = 305,487,961,759.68/693,138.40
  6. Step 6: Final answer
    x = 440,731.55

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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.