Home / 820,934.40-1,133,147.52-481,539.84

Finding the Fourth Proportional to 820,934.40, 1,133,147.52 and 481,539.84

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Solution

The fourth proportional to 820,934.40, 1,133,147.52 and 481,539.84 is: 664,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,934.40 : 1,133,147.52 = 481,539.84 : x
  2. Step 2: Convert to fraction form
    820,934.40/1,133,147.52 = 481,539.84/x
  3. Step 3: Cross multiply
    820,934.40x = 1,133,147.52 × 481,539.84
  4. Step 4: Simplify right side
    820,934.40x = 545,655,675,477.20
  5. Step 5: Solve for x
    x = 545,655,675,477.20/820,934.40
  6. Step 6: Final answer
    x = 664,676.34

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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.