Home / 820,984.75-1,231,594.64-252,413.58

Finding the Fourth Proportional to 820,984.75, 1,231,594.64 and 252,413.58

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Solution

The fourth proportional to 820,984.75, 1,231,594.64 and 252,413.58 is: 378,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,984.75 : 1,231,594.64 = 252,413.58 : x
  2. Step 2: Convert to fraction form
    820,984.75/1,231,594.64 = 252,413.58/x
  3. Step 3: Cross multiply
    820,984.75x = 1,231,594.64 × 252,413.58
  4. Step 4: Simplify right side
    820,984.75x = 310,871,217,914.00
  5. Step 5: Solve for x
    x = 310,871,217,914.00/820,984.75
  6. Step 6: Final answer
    x = 378,656.51

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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.