Home / 522,799.85-784,137.43-143,759.09

Finding the Fourth Proportional to 522,799.85, 784,137.43 and 143,759.09

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Solution

The fourth proportional to 522,799.85, 784,137.43 and 143,759.09 is: 215,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,799.85 : 784,137.43 = 143,759.09 : x
  2. Step 2: Convert to fraction form
    522,799.85/784,137.43 = 143,759.09/x
  3. Step 3: Cross multiply
    522,799.85x = 784,137.43 × 143,759.09
  4. Step 4: Simplify right side
    522,799.85x = 112,726,878,732.26
  5. Step 5: Solve for x
    x = 112,726,878,732.26/522,799.85
  6. Step 6: Final answer
    x = 215,621.48

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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.