Home / 853,413.32-1,280,104.14-254,780.36

Finding the Fourth Proportional to 853,413.32, 1,280,104.14 and 254,780.36

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Solution

The fourth proportional to 853,413.32, 1,280,104.14 and 254,780.36 is: 382,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,413.32 : 1,280,104.14 = 254,780.36 : x
  2. Step 2: Convert to fraction form
    853,413.32/1,280,104.14 = 254,780.36/x
  3. Step 3: Cross multiply
    853,413.32x = 1,280,104.14 × 254,780.36
  4. Step 4: Simplify right side
    853,413.32x = 326,145,393,626.69
  5. Step 5: Solve for x
    x = 326,145,393,626.69/853,413.32
  6. Step 6: Final answer
    x = 382,165.81

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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.