Home / 639,179.45-958,095.13-212,601.36

Finding the Fourth Proportional to 639,179.45, 958,095.13 and 212,601.36

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Solution

The fourth proportional to 639,179.45, 958,095.13 and 212,601.36 is: 318,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,179.45 : 958,095.13 = 212,601.36 : x
  2. Step 2: Convert to fraction form
    639,179.45/958,095.13 = 212,601.36/x
  3. Step 3: Cross multiply
    639,179.45x = 958,095.13 × 212,601.36
  4. Step 4: Simplify right side
    639,179.45x = 203,692,327,647.38
  5. Step 5: Solve for x
    x = 203,692,327,647.38/639,179.45
  6. Step 6: Final answer
    x = 318,677.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.