Home / 639,396.27-882,374.17-352,916.58

Finding the Fourth Proportional to 639,396.27, 882,374.17 and 352,916.58

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Solution

The fourth proportional to 639,396.27, 882,374.17 and 352,916.58 is: 487,028.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,396.27 : 882,374.17 = 352,916.58 : x
  2. Step 2: Convert to fraction form
    639,396.27/882,374.17 = 352,916.58/x
  3. Step 3: Cross multiply
    639,396.27x = 882,374.17 × 352,916.58
  4. Step 4: Simplify right side
    639,396.27x = 311,404,474,356.74
  5. Step 5: Solve for x
    x = 311,404,474,356.74/639,396.27
  6. Step 6: Final answer
    x = 487,028.92

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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.