Home / 427,413.48-641,321.82-190,735.08

Finding the Fourth Proportional to 427,413.48, 641,321.82 and 190,735.08

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Solution

The fourth proportional to 427,413.48, 641,321.82 and 190,735.08 is: 286,192.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,413.48 : 641,321.82 = 190,735.08 : x
  2. Step 2: Convert to fraction form
    427,413.48/641,321.82 = 190,735.08/x
  3. Step 3: Cross multiply
    427,413.48x = 641,321.82 × 190,735.08
  4. Step 4: Simplify right side
    427,413.48x = 122,322,568,643.45
  5. Step 5: Solve for x
    x = 122,322,568,643.45/427,413.48
  6. Step 6: Final answer
    x = 286,192.58

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1.5x scale

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.