Home / 389,771.97-581,055.04-383,629.77

Finding the Fourth Proportional to 389,771.97, 581,055.04 and 383,629.77

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Solution

The fourth proportional to 389,771.97, 581,055.04 and 383,629.77 is: 571,898.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,771.97 : 581,055.04 = 383,629.77 : x
  2. Step 2: Convert to fraction form
    389,771.97/581,055.04 = 383,629.77/x
  3. Step 3: Cross multiply
    389,771.97x = 581,055.04 × 383,629.77
  4. Step 4: Simplify right side
    389,771.97x = 222,910,006,529.12
  5. Step 5: Solve for x
    x = 222,910,006,529.12/389,771.97
  6. Step 6: Final answer
    x = 571,898.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.