Home / 1,133,663.30-1,702,338.15-820,319.30

Finding the Fourth Proportional to 1,133,663.30, 1,702,338.15 and 820,319.30

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Solution

The fourth proportional to 1,133,663.30, 1,702,338.15 and 820,319.30 is: 1,231,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,663.30 : 1,702,338.15 = 820,319.30 : x
  2. Step 2: Convert to fraction form
    1,133,663.30/1,702,338.15 = 820,319.30/x
  3. Step 3: Cross multiply
    1,133,663.30x = 1,702,338.15 × 820,319.30
  4. Step 4: Simplify right side
    1,133,663.30x = 1,396,460,839,571.30
  5. Step 5: Solve for x
    x = 1,396,460,839,571.30/1,133,663.30
  6. Step 6: Final answer
    x = 1,231,812.69

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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.