Home / 1,479,003.20-2,218,504.80-1,420,942.40

Finding the Fourth Proportional to 1,479,003.20, 2,218,504.80 and 1,420,942.40

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Solution

The fourth proportional to 1,479,003.20, 2,218,504.80 and 1,420,942.40 is: 2,131,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,003.20 : 2,218,504.80 = 1,420,942.40 : x
  2. Step 2: Convert to fraction form
    1,479,003.20/2,218,504.80 = 1,420,942.40/x
  3. Step 3: Cross multiply
    1,479,003.20x = 2,218,504.80 × 1,420,942.40
  4. Step 4: Simplify right side
    1,479,003.20x = 3,152,367,534,923.52
  5. Step 5: Solve for x
    x = 3,152,367,534,923.52/1,479,003.20
  6. Step 6: Final answer
    x = 2,131,413.60

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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.