Home / 820,651.07-1,132,687.43-481,228.67

Finding the Fourth Proportional to 820,651.07, 1,132,687.43 and 481,228.67

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Solution

The fourth proportional to 820,651.07, 1,132,687.43 and 481,228.67 is: 664,206.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,651.07 : 1,132,687.43 = 481,228.67 : x
  2. Step 2: Convert to fraction form
    820,651.07/1,132,687.43 = 481,228.67/x
  3. Step 3: Cross multiply
    820,651.07x = 1,132,687.43 × 481,228.67
  4. Step 4: Simplify right side
    820,651.07x = 545,081,665,464.62
  5. Step 5: Solve for x
    x = 545,081,665,464.62/820,651.07
  6. Step 6: Final answer
    x = 664,206.37

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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.