Home / 1,327,042.53-1,990,952.60-428,467.41

Finding the Fourth Proportional to 1,327,042.53, 1,990,952.60 and 428,467.41

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Solution

The fourth proportional to 1,327,042.53, 1,990,952.60 and 428,467.41 is: 642,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,042.53 : 1,990,952.60 = 428,467.41 : x
  2. Step 2: Convert to fraction form
    1,327,042.53/1,990,952.60 = 428,467.41/x
  3. Step 3: Cross multiply
    1,327,042.53x = 1,990,952.60 × 428,467.41
  4. Step 4: Simplify right side
    1,327,042.53x = 853,058,301,812.43
  5. Step 5: Solve for x
    x = 853,058,301,812.43/1,327,042.53
  6. Step 6: Final answer
    x = 642,826.65

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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.