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Finding the Fourth Proportional to 456,958.04, 685,879.86 and 220,467.04

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Solution

The fourth proportional to 456,958.04, 685,879.86 and 220,467.04 is: 330,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,958.04 : 685,879.86 = 220,467.04 : x
  2. Step 2: Convert to fraction form
    456,958.04/685,879.86 = 220,467.04/x
  3. Step 3: Cross multiply
    456,958.04x = 685,879.86 × 220,467.04
  4. Step 4: Simplify right side
    456,958.04x = 151,213,902,529.81
  5. Step 5: Solve for x
    x = 151,213,902,529.81/456,958.04
  6. Step 6: Final answer
    x = 330,914.20

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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.