Home / 751,957.48-1,128,002.70-212,218.54

Finding the Fourth Proportional to 751,957.48, 1,128,002.70 and 212,218.54

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Solution

The fourth proportional to 751,957.48, 1,128,002.70 and 212,218.54 is: 318,346.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,957.48 : 1,128,002.70 = 212,218.54 : x
  2. Step 2: Convert to fraction form
    751,957.48/1,128,002.70 = 212,218.54/x
  3. Step 3: Cross multiply
    751,957.48x = 1,128,002.70 × 212,218.54
  4. Step 4: Simplify right side
    751,957.48x = 239,383,086,110.06
  5. Step 5: Solve for x
    x = 239,383,086,110.06/751,957.48
  6. Step 6: Final answer
    x = 318,346.57

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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.