Home / 1,051,255.21-1,450,515.23-669,142.57

Finding the Fourth Proportional to 1,051,255.21, 1,450,515.23 and 669,142.57

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Solution

The fourth proportional to 1,051,255.21, 1,450,515.23 and 669,142.57 is: 923,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,255.21 : 1,450,515.23 = 669,142.57 : x
  2. Step 2: Convert to fraction form
    1,051,255.21/1,450,515.23 = 669,142.57/x
  3. Step 3: Cross multiply
    1,051,255.21x = 1,450,515.23 × 669,142.57
  4. Step 4: Simplify right side
    1,051,255.21x = 970,601,481,573.77
  5. Step 5: Solve for x
    x = 970,601,481,573.77/1,051,255.21
  6. Step 6: Final answer
    x = 923,278.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.