Home / 751,203.78-1,036,760.49-428,841.06

Finding the Fourth Proportional to 751,203.78, 1,036,760.49 and 428,841.06

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Solution

The fourth proportional to 751,203.78, 1,036,760.49 and 428,841.06 is: 591,857.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,203.78 : 1,036,760.49 = 428,841.06 : x
  2. Step 2: Convert to fraction form
    751,203.78/1,036,760.49 = 428,841.06/x
  3. Step 3: Cross multiply
    751,203.78x = 1,036,760.49 × 428,841.06
  4. Step 4: Simplify right side
    751,203.78x = 444,605,467,497.72
  5. Step 5: Solve for x
    x = 444,605,467,497.72/751,203.78
  6. Step 6: Final answer
    x = 591,857.34

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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.