Home / 892,722.30-1,339,156.29-419,149.32

Finding the Fourth Proportional to 892,722.30, 1,339,156.29 and 419,149.32

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Solution

The fourth proportional to 892,722.30, 1,339,156.29 and 419,149.32 is: 628,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,722.30 : 1,339,156.29 = 419,149.32 : x
  2. Step 2: Convert to fraction form
    892,722.30/1,339,156.29 = 419,149.32/x
  3. Step 3: Cross multiply
    892,722.30x = 1,339,156.29 × 419,149.32
  4. Step 4: Simplify right side
    892,722.30x = 561,306,448,327.22
  5. Step 5: Solve for x
    x = 561,306,448,327.22/892,722.30
  6. Step 6: Final answer
    x = 628,758.18

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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.