Home / 1,383,936-2,076,835.68-485,386.08

Finding the Fourth Proportional to 1,383,936, 2,076,835.68 and 485,386.08

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Solution

The fourth proportional to 1,383,936, 2,076,835.68 and 485,386.08 is: 728,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,936 : 2,076,835.68 = 485,386.08 : x
  2. Step 2: Convert to fraction form
    1,383,936/2,076,835.68 = 485,386.08/x
  3. Step 3: Cross multiply
    1,383,936x = 2,076,835.68 × 485,386.08
  4. Step 4: Simplify right side
    1,383,936x = 1,008,067,129,519.33
  5. Step 5: Solve for x
    x = 1,008,067,129,519.33/1,383,936
  6. Step 6: Final answer
    x = 728,405.89

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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.