Home / 1,133,654.80-1,702,325.40-820,310.80

Finding the Fourth Proportional to 1,133,654.80, 1,702,325.40 and 820,310.80

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Solution

The fourth proportional to 1,133,654.80, 1,702,325.40 and 820,310.80 is: 1,231,799.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,654.80 : 1,702,325.40 = 820,310.80 : x
  2. Step 2: Convert to fraction form
    1,133,654.80/1,702,325.40 = 820,310.80/x
  3. Step 3: Cross multiply
    1,133,654.80x = 1,702,325.40 × 820,310.80
  4. Step 4: Simplify right side
    1,133,654.80x = 1,396,435,910,734.32
  5. Step 5: Solve for x
    x = 1,396,435,910,734.32/1,133,654.80
  6. Step 6: Final answer
    x = 1,231,799.94

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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.