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Finding the Fourth Proportional to 634,600.20, 951,903.60 and 213,879.72

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Solution

The fourth proportional to 634,600.20, 951,903.60 and 213,879.72 is: 320,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,600.20 : 951,903.60 = 213,879.72 : x
  2. Step 2: Convert to fraction form
    634,600.20/951,903.60 = 213,879.72/x
  3. Step 3: Cross multiply
    634,600.20x = 951,903.60 × 213,879.72
  4. Step 4: Simplify right side
    634,600.20x = 203,592,875,434.99
  5. Step 5: Solve for x
    x = 203,592,875,434.99/634,600.20
  6. Step 6: Final answer
    x = 320,820.69

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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.