Home / 639,521.74-882,542.82-353,044.18

Finding the Fourth Proportional to 639,521.74, 882,542.82 and 353,044.18

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Solution

The fourth proportional to 639,521.74, 882,542.82 and 353,044.18 is: 487,202.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,521.74 : 882,542.82 = 353,044.18 : x
  2. Step 2: Convert to fraction form
    639,521.74/882,542.82 = 353,044.18/x
  3. Step 3: Cross multiply
    639,521.74x = 882,542.82 × 353,044.18
  4. Step 4: Simplify right side
    639,521.74x = 311,576,606,201.79
  5. Step 5: Solve for x
    x = 311,576,606,201.79/639,521.74
  6. Step 6: Final answer
    x = 487,202.52

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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.