Home / 861,245.88-1,187,287.44-605,804.28

Finding the Fourth Proportional to 861,245.88, 1,187,287.44 and 605,804.28

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Solution

The fourth proportional to 861,245.88, 1,187,287.44 and 605,804.28 is: 835,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,245.88 : 1,187,287.44 = 605,804.28 : x
  2. Step 2: Convert to fraction form
    861,245.88/1,187,287.44 = 605,804.28/x
  3. Step 3: Cross multiply
    861,245.88x = 1,187,287.44 × 605,804.28
  4. Step 4: Simplify right side
    861,245.88x = 719,263,812,742.24
  5. Step 5: Solve for x
    x = 719,263,812,742.24/861,245.88
  6. Step 6: Final answer
    x = 835,143.40

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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.