Home / 639,503.22-882,514.60-353,023.50

Finding the Fourth Proportional to 639,503.22, 882,514.60 and 353,023.50

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Solution

The fourth proportional to 639,503.22, 882,514.60 and 353,023.50 is: 487,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,503.22 : 882,514.60 = 353,023.50 : x
  2. Step 2: Convert to fraction form
    639,503.22/882,514.60 = 353,023.50/x
  3. Step 3: Cross multiply
    639,503.22x = 882,514.60 × 353,023.50
  4. Step 4: Simplify right side
    639,503.22x = 311,548,392,010.54
  5. Step 5: Solve for x
    x = 311,548,392,010.54/639,503.22
  6. Step 6: Final answer
    x = 487,172.51

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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.