Home / 820,648.91-1,132,684.45-481,226.51

Finding the Fourth Proportional to 820,648.91, 1,132,684.45 and 481,226.51

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Solution

The fourth proportional to 820,648.91, 1,132,684.45 and 481,226.51 is: 664,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,648.91 : 1,132,684.45 = 481,226.51 : x
  2. Step 2: Convert to fraction form
    820,648.91/1,132,684.45 = 481,226.51/x
  3. Step 3: Cross multiply
    820,648.91x = 1,132,684.45 × 481,226.51
  4. Step 4: Simplify right side
    820,648.91x = 545,077,784,804.77
  5. Step 5: Solve for x
    x = 545,077,784,804.77/820,648.91
  6. Step 6: Final answer
    x = 664,203.39

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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.