Home / 639,180.45-958,096.63-212,602.36

Finding the Fourth Proportional to 639,180.45, 958,096.63 and 212,602.36

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Solution

The fourth proportional to 639,180.45, 958,096.63 and 212,602.36 is: 318,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,180.45 : 958,096.63 = 212,602.36 : x
  2. Step 2: Convert to fraction form
    639,180.45/958,096.63 = 212,602.36/x
  3. Step 3: Cross multiply
    639,180.45x = 958,096.63 × 212,602.36
  4. Step 4: Simplify right side
    639,180.45x = 203,693,604,646.05
  5. Step 5: Solve for x
    x = 203,693,604,646.05/639,180.45
  6. Step 6: Final answer
    x = 318,679.34

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1.5x scale

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.