Home / 1,133,679.80-1,702,362.90-820,335.80

Finding the Fourth Proportional to 1,133,679.80, 1,702,362.90 and 820,335.80

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Solution

The fourth proportional to 1,133,679.80, 1,702,362.90 and 820,335.80 is: 1,231,837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,679.80 : 1,702,362.90 = 820,335.80 : x
  2. Step 2: Convert to fraction form
    1,133,679.80/1,702,362.90 = 820,335.80/x
  3. Step 3: Cross multiply
    1,133,679.80x = 1,702,362.90 × 820,335.80
  4. Step 4: Simplify right side
    1,133,679.80x = 1,396,509,231,461.82
  5. Step 5: Solve for x
    x = 1,396,509,231,461.82/1,133,679.80
  6. Step 6: Final answer
    x = 1,231,837.45

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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.