Home / 986,100.20-1,482,450.14-778,243.56

Finding the Fourth Proportional to 986,100.20, 1,482,450.14 and 778,243.56

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Solution

The fourth proportional to 986,100.20, 1,482,450.14 and 778,243.56 is: 1,169,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,100.20 : 1,482,450.14 = 778,243.56 : x
  2. Step 2: Convert to fraction form
    986,100.20/1,482,450.14 = 778,243.56/x
  3. Step 3: Cross multiply
    986,100.20x = 1,482,450.14 × 778,243.56
  4. Step 4: Simplify right side
    986,100.20x = 1,153,707,274,476.10
  5. Step 5: Solve for x
    x = 1,153,707,274,476.10/986,100.20
  6. Step 6: Final answer
    x = 1,169,969.62

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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.