Home / 459,771.14-689,313.11-317,209.61

Finding the Fourth Proportional to 459,771.14, 689,313.11 and 317,209.61

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Solution

The fourth proportional to 459,771.14, 689,313.11 and 317,209.61 is: 475,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,771.14 : 689,313.11 = 317,209.61 : x
  2. Step 2: Convert to fraction form
    459,771.14/689,313.11 = 317,209.61/x
  3. Step 3: Cross multiply
    459,771.14x = 689,313.11 × 317,209.61
  4. Step 4: Simplify right side
    459,771.14x = 218,656,741,204.94
  5. Step 5: Solve for x
    x = 218,656,741,204.94/459,771.14
  6. Step 6: Final answer
    x = 475,577.36

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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.