Home / 1,188,015.86-1,781,934.26-378,367.62

Finding the Fourth Proportional to 1,188,015.86, 1,781,934.26 and 378,367.62

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Solution

The fourth proportional to 1,188,015.86, 1,781,934.26 and 378,367.62 is: 567,522.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,015.86 : 1,781,934.26 = 378,367.62 : x
  2. Step 2: Convert to fraction form
    1,188,015.86/1,781,934.26 = 378,367.62/x
  3. Step 3: Cross multiply
    1,188,015.86x = 1,781,934.26 × 378,367.62
  4. Step 4: Simplify right side
    1,188,015.86x = 674,226,223,060.82
  5. Step 5: Solve for x
    x = 674,226,223,060.82/1,188,015.86
  6. Step 6: Final answer
    x = 567,522.92

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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.