Home / 804,987.80-1,207,469.13-205,943.78

Finding the Fourth Proportional to 804,987.80, 1,207,469.13 and 205,943.78

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Solution

The fourth proportional to 804,987.80, 1,207,469.13 and 205,943.78 is: 308,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,987.80 : 1,207,469.13 = 205,943.78 : x
  2. Step 2: Convert to fraction form
    804,987.80/1,207,469.13 = 205,943.78/x
  3. Step 3: Cross multiply
    804,987.80x = 1,207,469.13 × 205,943.78
  4. Step 4: Simplify right side
    804,987.80x = 248,670,756,865.51
  5. Step 5: Solve for x
    x = 248,670,756,865.51/804,987.80
  6. Step 6: Final answer
    x = 308,912.45

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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.