Home / 1,188,126.86-1,781,478.56-378,161.41

Finding the Fourth Proportional to 1,188,126.86, 1,781,478.56 and 378,161.41

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Solution

The fourth proportional to 1,188,126.86, 1,781,478.56 and 378,161.41 is: 567,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,126.86 : 1,781,478.56 = 378,161.41 : x
  2. Step 2: Convert to fraction form
    1,188,126.86/1,781,478.56 = 378,161.41/x
  3. Step 3: Cross multiply
    1,188,126.86x = 1,781,478.56 × 378,161.41
  4. Step 4: Simplify right side
    1,188,126.86x = 673,686,441,030.45
  5. Step 5: Solve for x
    x = 673,686,441,030.45/1,188,126.86
  6. Step 6: Final answer
    x = 567,015.58

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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.