Home / 691,915.44-1,037,998.62-313,014.72

Finding the Fourth Proportional to 691,915.44, 1,037,998.62 and 313,014.72

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Solution

The fourth proportional to 691,915.44, 1,037,998.62 and 313,014.72 is: 469,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,915.44 : 1,037,998.62 = 313,014.72 : x
  2. Step 2: Convert to fraction form
    691,915.44/1,037,998.62 = 313,014.72/x
  3. Step 3: Cross multiply
    691,915.44x = 1,037,998.62 × 313,014.72
  4. Step 4: Simplify right side
    691,915.44x = 324,908,847,399.69
  5. Step 5: Solve for x
    x = 324,908,847,399.69/691,915.44
  6. Step 6: Final answer
    x = 469,578.84

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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.