Home / 751,047.31-1,036,486.79-428,860.90

Finding the Fourth Proportional to 751,047.31, 1,036,486.79 and 428,860.90

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Solution

The fourth proportional to 751,047.31, 1,036,486.79 and 428,860.90 is: 591,851.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,047.31 : 1,036,486.79 = 428,860.90 : x
  2. Step 2: Convert to fraction form
    751,047.31/1,036,486.79 = 428,860.90/x
  3. Step 3: Cross multiply
    751,047.31x = 1,036,486.79 × 428,860.90
  4. Step 4: Simplify right side
    751,047.31x = 444,508,656,078.45
  5. Step 5: Solve for x
    x = 444,508,656,078.45/751,047.31
  6. Step 6: Final answer
    x = 591,851.74

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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.