Home / 386,919.62-580,351.91-102,603.86

Finding the Fourth Proportional to 386,919.62, 580,351.91 and 102,603.86

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Solution

The fourth proportional to 386,919.62, 580,351.91 and 102,603.86 is: 153,898.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,919.62 : 580,351.91 = 102,603.86 : x
  2. Step 2: Convert to fraction form
    386,919.62/580,351.91 = 102,603.86/x
  3. Step 3: Cross multiply
    386,919.62x = 580,351.91 × 102,603.86
  4. Step 4: Simplify right side
    386,919.62x = 59,546,346,124.37
  5. Step 5: Solve for x
    x = 59,546,346,124.37/386,919.62
  6. Step 6: Final answer
    x = 153,898.49

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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.