Home / 641,720.15-885,584.26-351,326.84

Finding the Fourth Proportional to 641,720.15, 885,584.26 and 351,326.84

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Solution

The fourth proportional to 641,720.15, 885,584.26 and 351,326.84 is: 484,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,720.15 : 885,584.26 = 351,326.84 : x
  2. Step 2: Convert to fraction form
    641,720.15/885,584.26 = 351,326.84/x
  3. Step 3: Cross multiply
    641,720.15x = 885,584.26 × 351,326.84
  4. Step 4: Simplify right side
    641,720.15x = 311,129,524,091.00
  5. Step 5: Solve for x
    x = 311,129,524,091.00/641,720.15
  6. Step 6: Final answer
    x = 484,836.77

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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.