Home / 723,413.73-1,085,076.86-323,947.25

Finding the Fourth Proportional to 723,413.73, 1,085,076.86 and 323,947.25

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Solution

The fourth proportional to 723,413.73, 1,085,076.86 and 323,947.25 is: 485,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,413.73 : 1,085,076.86 = 323,947.25 : x
  2. Step 2: Convert to fraction form
    723,413.73/1,085,076.86 = 323,947.25/x
  3. Step 3: Cross multiply
    723,413.73x = 1,085,076.86 × 323,947.25
  4. Step 4: Simplify right side
    723,413.73x = 351,507,657,790.51
  5. Step 5: Solve for x
    x = 351,507,657,790.51/723,413.73
  6. Step 6: Final answer
    x = 485,901.28

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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.