Home / 641,711.52-884,919.60-426,860.64

Finding the Fourth Proportional to 641,711.52, 884,919.60 and 426,860.64

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Solution

The fourth proportional to 641,711.52, 884,919.60 and 426,860.64 is: 588,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,711.52 : 884,919.60 = 426,860.64 : x
  2. Step 2: Convert to fraction form
    641,711.52/884,919.60 = 426,860.64/x
  3. Step 3: Cross multiply
    641,711.52x = 884,919.60 × 426,860.64
  4. Step 4: Simplify right side
    641,711.52x = 377,737,346,804.54
  5. Step 5: Solve for x
    x = 377,737,346,804.54/641,711.52
  6. Step 6: Final answer
    x = 588,640.43

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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.