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Finding the Fourth Proportional to 628,893.87, 867,844.58 and 342,413.07

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Solution

The fourth proportional to 628,893.87, 867,844.58 and 342,413.07 is: 472,514.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,893.87 : 867,844.58 = 342,413.07 : x
  2. Step 2: Convert to fraction form
    628,893.87/867,844.58 = 342,413.07/x
  3. Step 3: Cross multiply
    628,893.87x = 867,844.58 × 342,413.07
  4. Step 4: Simplify right side
    628,893.87x = 297,161,325,208.60
  5. Step 5: Solve for x
    x = 297,161,325,208.60/628,893.87
  6. Step 6: Final answer
    x = 472,514.27

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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.