Home / 919,943.03-1,380,095.08-320,923.73

Finding the Fourth Proportional to 919,943.03, 1,380,095.08 and 320,923.73

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Solution

The fourth proportional to 919,943.03, 1,380,095.08 and 320,923.73 is: 481,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,943.03 : 1,380,095.08 = 320,923.73 : x
  2. Step 2: Convert to fraction form
    919,943.03/1,380,095.08 = 320,923.73/x
  3. Step 3: Cross multiply
    919,943.03x = 1,380,095.08 × 320,923.73
  4. Step 4: Simplify right side
    919,943.03x = 442,905,263,476.18
  5. Step 5: Solve for x
    x = 442,905,263,476.18/919,943.03
  6. Step 6: Final answer
    x = 481,448.58

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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.