Home / 919,796.49-1,379,700.89-320,755.32

Finding the Fourth Proportional to 919,796.49, 1,379,700.89 and 320,755.32

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Solution

The fourth proportional to 919,796.49, 1,379,700.89 and 320,755.32 is: 481,135.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,796.49 : 1,379,700.89 = 320,755.32 : x
  2. Step 2: Convert to fraction form
    919,796.49/1,379,700.89 = 320,755.32/x
  3. Step 3: Cross multiply
    919,796.49x = 1,379,700.89 × 320,755.32
  4. Step 4: Simplify right side
    919,796.49x = 442,546,398,872.46
  5. Step 5: Solve for x
    x = 442,546,398,872.46/919,796.49
  6. Step 6: Final answer
    x = 481,135.12

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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.