Home / 1,680,413.25-2,520,621.38-720,245.75

Finding the Fourth Proportional to 1,680,413.25, 2,520,621.38 and 720,245.75

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Solution

The fourth proportional to 1,680,413.25, 2,520,621.38 and 720,245.75 is: 1,080,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,413.25 : 2,520,621.38 = 720,245.75 : x
  2. Step 2: Convert to fraction form
    1,680,413.25/2,520,621.38 = 720,245.75/x
  3. Step 3: Cross multiply
    1,680,413.25x = 2,520,621.38 × 720,245.75
  4. Step 4: Simplify right side
    1,680,413.25x = 1,815,466,844,406.30
  5. Step 5: Solve for x
    x = 1,815,466,844,406.30/1,680,413.25
  6. Step 6: Final answer
    x = 1,080,369.27

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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.