Home / 787,819.38-1,087,268.31-482,033.58

Finding the Fourth Proportional to 787,819.38, 1,087,268.31 and 482,033.58

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Solution

The fourth proportional to 787,819.38, 1,087,268.31 and 482,033.58 is: 665,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,819.38 : 1,087,268.31 = 482,033.58 : x
  2. Step 2: Convert to fraction form
    787,819.38/1,087,268.31 = 482,033.58/x
  3. Step 3: Cross multiply
    787,819.38x = 1,087,268.31 × 482,033.58
  4. Step 4: Simplify right side
    787,819.38x = 524,099,835,889.85
  5. Step 5: Solve for x
    x = 524,099,835,889.85/787,819.38
  6. Step 6: Final answer
    x = 665,253.80

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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.