Home / 639,322.96-882,253.18-348,936.61

Finding the Fourth Proportional to 639,322.96, 882,253.18 and 348,936.61

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Solution

The fourth proportional to 639,322.96, 882,253.18 and 348,936.61 is: 481,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,322.96 : 882,253.18 = 348,936.61 : x
  2. Step 2: Convert to fraction form
    639,322.96/882,253.18 = 348,936.61/x
  3. Step 3: Cross multiply
    639,322.96x = 882,253.18 × 348,936.61
  4. Step 4: Simplify right side
    639,322.96x = 307,850,434,411.72
  5. Step 5: Solve for x
    x = 307,850,434,411.72/639,322.96
  6. Step 6: Final answer
    x = 481,525.70

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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.