Home / 1,431,273.80-2,145,310.74-620,722.32

Finding the Fourth Proportional to 1,431,273.80, 2,145,310.74 and 620,722.32

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Solution

The fourth proportional to 1,431,273.80, 2,145,310.74 and 620,722.32 is: 930,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,273.80 : 2,145,310.74 = 620,722.32 : x
  2. Step 2: Convert to fraction form
    1,431,273.80/2,145,310.74 = 620,722.32/x
  3. Step 3: Cross multiply
    1,431,273.80x = 2,145,310.74 × 620,722.32
  4. Step 4: Simplify right side
    1,431,273.80x = 1,331,642,259,653.72
  5. Step 5: Solve for x
    x = 1,331,642,259,653.72/1,431,273.80
  6. Step 6: Final answer
    x = 930,389.60

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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.