Home / 889,145.79-1,227,021.10-481,247.56

Finding the Fourth Proportional to 889,145.79, 1,227,021.10 and 481,247.56

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Solution

The fourth proportional to 889,145.79, 1,227,021.10 and 481,247.56 is: 664,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,145.79 : 1,227,021.10 = 481,247.56 : x
  2. Step 2: Convert to fraction form
    889,145.79/1,227,021.10 = 481,247.56/x
  3. Step 3: Cross multiply
    889,145.79x = 1,227,021.10 × 481,247.56
  4. Step 4: Simplify right side
    889,145.79x = 590,500,901,902.17
  5. Step 5: Solve for x
    x = 590,500,901,902.17/889,145.79
  6. Step 6: Final answer
    x = 664,121.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.