Home / 639,501.35-882,512.01-353,021.63

Finding the Fourth Proportional to 639,501.35, 882,512.01 and 353,021.63

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Solution

The fourth proportional to 639,501.35, 882,512.01 and 353,021.63 is: 487,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,501.35 : 882,512.01 = 353,021.63 : x
  2. Step 2: Convert to fraction form
    639,501.35/882,512.01 = 353,021.63/x
  3. Step 3: Cross multiply
    639,501.35x = 882,512.01 × 353,021.63
  4. Step 4: Simplify right side
    639,501.35x = 311,545,823,852.22
  5. Step 5: Solve for x
    x = 311,545,823,852.22/639,501.35
  6. Step 6: Final answer
    x = 487,169.93

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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.