Home / 751,062.78-1,036,466.61-449,256.78

Finding the Fourth Proportional to 751,062.78, 1,036,466.61 and 449,256.78

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Solution

The fourth proportional to 751,062.78, 1,036,466.61 and 449,256.78 is: 619,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,062.78 : 1,036,466.61 = 449,256.78 : x
  2. Step 2: Convert to fraction form
    751,062.78/1,036,466.61 = 449,256.78/x
  3. Step 3: Cross multiply
    751,062.78x = 1,036,466.61 × 449,256.78
  4. Step 4: Simplify right side
    751,062.78x = 465,639,651,786.12
  5. Step 5: Solve for x
    x = 465,639,651,786.12/751,062.78
  6. Step 6: Final answer
    x = 619,974.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.