Home / 1,133,669.80-1,702,347.90-820,325.80

Finding the Fourth Proportional to 1,133,669.80, 1,702,347.90 and 820,325.80

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Solution

The fourth proportional to 1,133,669.80, 1,702,347.90 and 820,325.80 is: 1,231,822.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,669.80 : 1,702,347.90 = 820,325.80 : x
  2. Step 2: Convert to fraction form
    1,133,669.80/1,702,347.90 = 820,325.80/x
  3. Step 3: Cross multiply
    1,133,669.80x = 1,702,347.90 × 820,325.80
  4. Step 4: Simplify right side
    1,133,669.80x = 1,396,479,902,945.82
  5. Step 5: Solve for x
    x = 1,396,479,902,945.82/1,133,669.80
  6. Step 6: Final answer
    x = 1,231,822.44

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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.