Home / 869,139.65-1,199,415.38-481,982.33

Finding the Fourth Proportional to 869,139.65, 1,199,415.38 and 481,982.33

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Solution

The fourth proportional to 869,139.65, 1,199,415.38 and 481,982.33 is: 665,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,139.65 : 1,199,415.38 = 481,982.33 : x
  2. Step 2: Convert to fraction form
    869,139.65/1,199,415.38 = 481,982.33/x
  3. Step 3: Cross multiply
    869,139.65x = 1,199,415.38 × 481,982.33
  4. Step 4: Simplify right side
    869,139.65x = 578,097,011,083.25
  5. Step 5: Solve for x
    x = 578,097,011,083.25/869,139.65
  6. Step 6: Final answer
    x = 665,137.09

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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.