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Finding the Fourth Proportional to 633,998.07, 873,446.90 and 442,708.47

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Solution

The fourth proportional to 633,998.07, 873,446.90 and 442,708.47 is: 609,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,998.07 : 873,446.90 = 442,708.47 : x
  2. Step 2: Convert to fraction form
    633,998.07/873,446.90 = 442,708.47/x
  3. Step 3: Cross multiply
    633,998.07x = 873,446.90 × 442,708.47
  4. Step 4: Simplify right side
    633,998.07x = 386,682,338,511.70
  5. Step 5: Solve for x
    x = 386,682,338,511.70/633,998.07
  6. Step 6: Final answer
    x = 609,910.91

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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.