Home / 639,457.30-882,449.21-352,975.33

Finding the Fourth Proportional to 639,457.30, 882,449.21 and 352,975.33

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Solution

The fourth proportional to 639,457.30, 882,449.21 and 352,975.33 is: 487,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,457.30 : 882,449.21 = 352,975.33 : x
  2. Step 2: Convert to fraction form
    639,457.30/882,449.21 = 352,975.33/x
  3. Step 3: Cross multiply
    639,457.30x = 882,449.21 × 352,975.33
  4. Step 4: Simplify right side
    639,457.30x = 311,482,801,107.99
  5. Step 5: Solve for x
    x = 311,482,801,107.99/639,457.30
  6. Step 6: Final answer
    x = 487,104.93

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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.