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Finding the Fourth Proportional to 461,169.15, 636,709.56 and 289,322.76

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Solution

The fourth proportional to 461,169.15, 636,709.56 and 289,322.76 is: 399,451.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,169.15 : 636,709.56 = 289,322.76 : x
  2. Step 2: Convert to fraction form
    461,169.15/636,709.56 = 289,322.76/x
  3. Step 3: Cross multiply
    461,169.15x = 636,709.56 × 289,322.76
  4. Step 4: Simplify right side
    461,169.15x = 184,214,567,217.59
  5. Step 5: Solve for x
    x = 184,214,567,217.59/461,169.15
  6. Step 6: Final answer
    x = 399,451.19

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1.5x scale

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.