Home / 639,405.14-882,379.17-352,925.30

Finding the Fourth Proportional to 639,405.14, 882,379.17 and 352,925.30

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Solution

The fourth proportional to 639,405.14, 882,379.17 and 352,925.30 is: 487,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,405.14 : 882,379.17 = 352,925.30 : x
  2. Step 2: Convert to fraction form
    639,405.14/882,379.17 = 352,925.30/x
  3. Step 3: Cross multiply
    639,405.14x = 882,379.17 × 352,925.30
  4. Step 4: Simplify right side
    639,405.14x = 311,413,935,491.95
  5. Step 5: Solve for x
    x = 311,413,935,491.95/639,405.14
  6. Step 6: Final answer
    x = 487,036.96

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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.