Home / 888,991.34-1,333,171.29-320,219.78

Finding the Fourth Proportional to 888,991.34, 1,333,171.29 and 320,219.78

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Solution

The fourth proportional to 888,991.34, 1,333,171.29 and 320,219.78 is: 480,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,991.34 : 1,333,171.29 = 320,219.78 : x
  2. Step 2: Convert to fraction form
    888,991.34/1,333,171.29 = 320,219.78/x
  3. Step 3: Cross multiply
    888,991.34x = 1,333,171.29 × 320,219.78
  4. Step 4: Simplify right side
    888,991.34x = 426,907,817,186.12
  5. Step 5: Solve for x
    x = 426,907,817,186.12/888,991.34
  6. Step 6: Final answer
    x = 480,215.95

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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.