Home / 787,153.19-1,086,078.66-442,922

Finding the Fourth Proportional to 787,153.19, 1,086,078.66 and 442,922

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Solution

The fourth proportional to 787,153.19, 1,086,078.66 and 442,922 is: 611,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,153.19 : 1,086,078.66 = 442,922 : x
  2. Step 2: Convert to fraction form
    787,153.19/1,086,078.66 = 442,922/x
  3. Step 3: Cross multiply
    787,153.19x = 1,086,078.66 × 442,922
  4. Step 4: Simplify right side
    787,153.19x = 481,048,132,244.52
  5. Step 5: Solve for x
    x = 481,048,132,244.52/787,153.19
  6. Step 6: Final answer
    x = 611,123.91

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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.