Home / 440,705.03-661,057.76-290,910.31

Finding the Fourth Proportional to 440,705.03, 661,057.76 and 290,910.31

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Solution

The fourth proportional to 440,705.03, 661,057.76 and 290,910.31 is: 436,365.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,705.03 : 661,057.76 = 290,910.31 : x
  2. Step 2: Convert to fraction form
    440,705.03/661,057.76 = 290,910.31/x
  3. Step 3: Cross multiply
    440,705.03x = 661,057.76 × 290,910.31
  4. Step 4: Simplify right side
    440,705.03x = 192,308,517,889.51
  5. Step 5: Solve for x
    x = 192,308,517,889.51/440,705.03
  6. Step 6: Final answer
    x = 436,365.61

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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.