Home / 820,648.89-1,132,684.43-481,226.49

Finding the Fourth Proportional to 820,648.89, 1,132,684.43 and 481,226.49

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Solution

The fourth proportional to 820,648.89, 1,132,684.43 and 481,226.49 is: 664,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,648.89 : 1,132,684.43 = 481,226.49 : x
  2. Step 2: Convert to fraction form
    820,648.89/1,132,684.43 = 481,226.49/x
  3. Step 3: Cross multiply
    820,648.89x = 1,132,684.43 × 481,226.49
  4. Step 4: Simplify right side
    820,648.89x = 545,077,750,120.42
  5. Step 5: Solve for x
    x = 545,077,750,120.42/820,648.89
  6. Step 6: Final answer
    x = 664,203.36

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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.