Home / 458,501.76-687,531.44-192,190.77

Finding the Fourth Proportional to 458,501.76, 687,531.44 and 192,190.77

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Solution

The fourth proportional to 458,501.76, 687,531.44 and 192,190.77 is: 288,193.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,501.76 : 687,531.44 = 192,190.77 : x
  2. Step 2: Convert to fraction form
    458,501.76/687,531.44 = 192,190.77/x
  3. Step 3: Cross multiply
    458,501.76x = 687,531.44 × 192,190.77
  4. Step 4: Simplify right side
    458,501.76x = 132,137,195,891.86
  5. Step 5: Solve for x
    x = 132,137,195,891.86/458,501.76
  6. Step 6: Final answer
    x = 288,193.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.