Home / 1,433,451-2,150,128.80-422,589.72

Finding the Fourth Proportional to 1,433,451, 2,150,128.80 and 422,589.72

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Solution

The fourth proportional to 1,433,451, 2,150,128.80 and 422,589.72 is: 633,870.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,451 : 2,150,128.80 = 422,589.72 : x
  2. Step 2: Convert to fraction form
    1,433,451/2,150,128.80 = 422,589.72/x
  3. Step 3: Cross multiply
    1,433,451x = 2,150,128.80 × 422,589.72
  4. Step 4: Simplify right side
    1,433,451x = 908,622,327,555.94
  5. Step 5: Solve for x
    x = 908,622,327,555.94/1,433,451
  6. Step 6: Final answer
    x = 633,870.52

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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.