Home / 1,133,666.80-1,702,343.40-820,322.80

Finding the Fourth Proportional to 1,133,666.80, 1,702,343.40 and 820,322.80

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Solution

The fourth proportional to 1,133,666.80, 1,702,343.40 and 820,322.80 is: 1,231,817.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,666.80 : 1,702,343.40 = 820,322.80 : x
  2. Step 2: Convert to fraction form
    1,133,666.80/1,702,343.40 = 820,322.80/x
  3. Step 3: Cross multiply
    1,133,666.80x = 1,702,343.40 × 820,322.80
  4. Step 4: Simplify right side
    1,133,666.80x = 1,396,471,104,449.52
  5. Step 5: Solve for x
    x = 1,396,471,104,449.52/1,133,666.80
  6. Step 6: Final answer
    x = 1,231,817.94

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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.