Home / 1,245,393.36-1,868,352.48-403,879.50

Finding the Fourth Proportional to 1,245,393.36, 1,868,352.48 and 403,879.50

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Solution

The fourth proportional to 1,245,393.36, 1,868,352.48 and 403,879.50 is: 605,904.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,393.36 : 1,868,352.48 = 403,879.50 : x
  2. Step 2: Convert to fraction form
    1,245,393.36/1,868,352.48 = 403,879.50/x
  3. Step 3: Cross multiply
    1,245,393.36x = 1,868,352.48 × 403,879.50
  4. Step 4: Simplify right side
    1,245,393.36x = 754,589,265,446.16
  5. Step 5: Solve for x
    x = 754,589,265,446.16/1,245,393.36
  6. Step 6: Final answer
    x = 605,904.36

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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.