Home / 1,939,271.20-2,908,906.80-1,372,400.80

Finding the Fourth Proportional to 1,939,271.20, 2,908,906.80 and 1,372,400.80

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Solution

The fourth proportional to 1,939,271.20, 2,908,906.80 and 1,372,400.80 is: 2,058,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,271.20 : 2,908,906.80 = 1,372,400.80 : x
  2. Step 2: Convert to fraction form
    1,939,271.20/2,908,906.80 = 1,372,400.80/x
  3. Step 3: Cross multiply
    1,939,271.20x = 2,908,906.80 × 1,372,400.80
  4. Step 4: Simplify right side
    1,939,271.20x = 3,992,186,019,445.44
  5. Step 5: Solve for x
    x = 3,992,186,019,445.44/1,939,271.20
  6. Step 6: Final answer
    x = 2,058,601.20

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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.