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Finding the Fourth Proportional to 634,273.45, 951,264.52 and 378,178.45

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Solution

The fourth proportional to 634,273.45, 951,264.52 and 378,178.45 is: 567,180.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,273.45 : 951,264.52 = 378,178.45 : x
  2. Step 2: Convert to fraction form
    634,273.45/951,264.52 = 378,178.45/x
  3. Step 3: Cross multiply
    634,273.45x = 951,264.52 × 378,178.45
  4. Step 4: Simplify right side
    634,273.45x = 359,747,741,713.59
  5. Step 5: Solve for x
    x = 359,747,741,713.59/634,273.45
  6. Step 6: Final answer
    x = 567,180.83

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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.