Home / 724,388.67-1,086,771.33-275,112.45

Finding the Fourth Proportional to 724,388.67, 1,086,771.33 and 275,112.45

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Solution

The fourth proportional to 724,388.67, 1,086,771.33 and 275,112.45 is: 412,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,388.67 : 1,086,771.33 = 275,112.45 : x
  2. Step 2: Convert to fraction form
    724,388.67/1,086,771.33 = 275,112.45/x
  3. Step 3: Cross multiply
    724,388.67x = 1,086,771.33 × 275,112.45
  4. Step 4: Simplify right side
    724,388.67x = 298,984,323,186.06
  5. Step 5: Solve for x
    x = 298,984,323,186.06/724,388.67
  6. Step 6: Final answer
    x = 412,740.20

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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.