Home / 804,540.78-1,206,810.12-205,502.40

Finding the Fourth Proportional to 804,540.78, 1,206,810.12 and 205,502.40

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Solution

The fourth proportional to 804,540.78, 1,206,810.12 and 205,502.40 is: 308,253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,540.78 : 1,206,810.12 = 205,502.40 : x
  2. Step 2: Convert to fraction form
    804,540.78/1,206,810.12 = 205,502.40/x
  3. Step 3: Cross multiply
    804,540.78x = 1,206,810.12 × 205,502.40
  4. Step 4: Simplify right side
    804,540.78x = 248,002,376,004.29
  5. Step 5: Solve for x
    x = 248,002,376,004.29/804,540.78
  6. Step 6: Final answer
    x = 308,253.33

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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.