Home / 639,114.10-881,976.78-352,634.14

Finding the Fourth Proportional to 639,114.10, 881,976.78 and 352,634.14

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Solution

The fourth proportional to 639,114.10, 881,976.78 and 352,634.14 is: 486,634.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,114.10 : 881,976.78 = 352,634.14 : x
  2. Step 2: Convert to fraction form
    639,114.10/881,976.78 = 352,634.14/x
  3. Step 3: Cross multiply
    639,114.10x = 881,976.78 × 352,634.14
  4. Step 4: Simplify right side
    639,114.10x = 311,015,123,315.27
  5. Step 5: Solve for x
    x = 311,015,123,315.27/639,114.10
  6. Step 6: Final answer
    x = 486,634.74

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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.