Home / 639,376.38-882,341.19-348,990.57

Finding the Fourth Proportional to 639,376.38, 882,341.19 and 348,990.57

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Solution

The fourth proportional to 639,376.38, 882,341.19 and 348,990.57 is: 481,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,376.38 : 882,341.19 = 348,990.57 : x
  2. Step 2: Convert to fraction form
    639,376.38/882,341.19 = 348,990.57/x
  3. Step 3: Cross multiply
    639,376.38x = 882,341.19 × 348,990.57
  4. Step 4: Simplify right side
    639,376.38x = 307,928,754,832.58
  5. Step 5: Solve for x
    x = 307,928,754,832.58/639,376.38
  6. Step 6: Final answer
    x = 481,607.96

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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.