Home / 639,341.22-882,286.53-352,861.31

Finding the Fourth Proportional to 639,341.22, 882,286.53 and 352,861.31

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Solution

The fourth proportional to 639,341.22, 882,286.53 and 352,861.31 is: 486,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,341.22 : 882,286.53 = 352,861.31 : x
  2. Step 2: Convert to fraction form
    639,341.22/882,286.53 = 352,861.31/x
  3. Step 3: Cross multiply
    639,341.22x = 882,286.53 × 352,861.31
  4. Step 4: Simplify right side
    639,341.22x = 311,324,776,359.72
  5. Step 5: Solve for x
    x = 311,324,776,359.72/639,341.22
  6. Step 6: Final answer
    x = 486,946.20

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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.