Home / 1,279,682.12-1,918,046.96-480,453.92

Finding the Fourth Proportional to 1,279,682.12, 1,918,046.96 and 480,453.92

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Solution

The fourth proportional to 1,279,682.12, 1,918,046.96 and 480,453.92 is: 720,126.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,682.12 : 1,918,046.96 = 480,453.92 : x
  2. Step 2: Convert to fraction form
    1,279,682.12/1,918,046.96 = 480,453.92/x
  3. Step 3: Cross multiply
    1,279,682.12x = 1,918,046.96 × 480,453.92
  4. Step 4: Simplify right side
    1,279,682.12x = 921,533,180,676.08
  5. Step 5: Solve for x
    x = 921,533,180,676.08/1,279,682.12
  6. Step 6: Final answer
    x = 720,126.64

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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.