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Finding the Fourth Proportional to 493,595.68, 681,166.60 and 289,650.04

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Solution

The fourth proportional to 493,595.68, 681,166.60 and 289,650.04 is: 399,719.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,595.68 : 681,166.60 = 289,650.04 : x
  2. Step 2: Convert to fraction form
    493,595.68/681,166.60 = 289,650.04/x
  3. Step 3: Cross multiply
    493,595.68x = 681,166.60 × 289,650.04
  4. Step 4: Simplify right side
    493,595.68x = 197,299,932,936.66
  5. Step 5: Solve for x
    x = 197,299,932,936.66/493,595.68
  6. Step 6: Final answer
    x = 399,719.73

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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.