Home / 804,538.78-1,206,807.12-205,500.40

Finding the Fourth Proportional to 804,538.78, 1,206,807.12 and 205,500.40

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Solution

The fourth proportional to 804,538.78, 1,206,807.12 and 205,500.40 is: 308,250.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,538.78 : 1,206,807.12 = 205,500.40 : x
  2. Step 2: Convert to fraction form
    804,538.78/1,206,807.12 = 205,500.40/x
  3. Step 3: Cross multiply
    804,538.78x = 1,206,807.12 × 205,500.40
  4. Step 4: Simplify right side
    804,538.78x = 247,999,345,882.85
  5. Step 5: Solve for x
    x = 247,999,345,882.85/804,538.78
  6. Step 6: Final answer
    x = 308,250.33

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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.