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Finding the Fourth Proportional to 534,413.70, 800,940.15 and 218,513.70

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Solution

The fourth proportional to 534,413.70, 800,940.15 and 218,513.70 is: 327,492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,413.70 : 800,940.15 = 218,513.70 : x
  2. Step 2: Convert to fraction form
    534,413.70/800,940.15 = 218,513.70/x
  3. Step 3: Cross multiply
    534,413.70x = 800,940.15 × 218,513.70
  4. Step 4: Simplify right side
    534,413.70x = 175,016,395,655.06
  5. Step 5: Solve for x
    x = 175,016,395,655.06/534,413.70
  6. Step 6: Final answer
    x = 327,492.34

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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.