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Finding the Fourth Proportional to 804,610.69, 1,109,028.99 and 783,313.11

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Solution

The fourth proportional to 804,610.69, 1,109,028.99 and 783,313.11 is: 1,079,673.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,610.69 : 1,109,028.99 = 783,313.11 : x
  2. Step 2: Convert to fraction form
    804,610.69/1,109,028.99 = 783,313.11/x
  3. Step 3: Cross multiply
    804,610.69x = 1,109,028.99 × 783,313.11
  4. Step 4: Simplify right side
    804,610.69x = 868,716,950,174.48
  5. Step 5: Solve for x
    x = 868,716,950,174.48/804,610.69
  6. Step 6: Final answer
    x = 1,079,673.64

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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.