Home / 919,886.08-1,379,835.24-320,845

Finding the Fourth Proportional to 919,886.08, 1,379,835.24 and 320,845

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Solution

The fourth proportional to 919,886.08, 1,379,835.24 and 320,845 is: 481,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,886.08 : 1,379,835.24 = 320,845 : x
  2. Step 2: Convert to fraction form
    919,886.08/1,379,835.24 = 320,845/x
  3. Step 3: Cross multiply
    919,886.08x = 1,379,835.24 × 320,845
  4. Step 4: Simplify right side
    919,886.08x = 442,713,237,577.80
  5. Step 5: Solve for x
    x = 442,713,237,577.80/919,886.08
  6. Step 6: Final answer
    x = 481,269.63

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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.