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Finding the Fourth Proportional to 404,413.60, 606,620.40 and 254,822.80

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Solution

The fourth proportional to 404,413.60, 606,620.40 and 254,822.80 is: 382,234.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,413.60 : 606,620.40 = 254,822.80 : x
  2. Step 2: Convert to fraction form
    404,413.60/606,620.40 = 254,822.80/x
  3. Step 3: Cross multiply
    404,413.60x = 606,620.40 × 254,822.80
  4. Step 4: Simplify right side
    404,413.60x = 154,580,708,865.12
  5. Step 5: Solve for x
    x = 154,580,708,865.12/404,413.60
  6. Step 6: Final answer
    x = 382,234.20

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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.