Home / 804,987.30-1,207,468.38-205,943.28

Finding the Fourth Proportional to 804,987.30, 1,207,468.38 and 205,943.28

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Solution

The fourth proportional to 804,987.30, 1,207,468.38 and 205,943.28 is: 308,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,987.30 : 1,207,468.38 = 205,943.28 : x
  2. Step 2: Convert to fraction form
    804,987.30/1,207,468.38 = 205,943.28/x
  3. Step 3: Cross multiply
    804,987.30x = 1,207,468.38 × 205,943.28
  4. Step 4: Simplify right side
    804,987.30x = 248,669,998,673.49
  5. Step 5: Solve for x
    x = 248,669,998,673.49/804,987.30
  6. Step 6: Final answer
    x = 308,911.70

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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.