Home / 1,218,806.16-1,681,674.12-783,450.96

Finding the Fourth Proportional to 1,218,806.16, 1,681,674.12 and 783,450.96

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Solution

The fourth proportional to 1,218,806.16, 1,681,674.12 and 783,450.96 is: 1,080,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,806.16 : 1,681,674.12 = 783,450.96 : x
  2. Step 2: Convert to fraction form
    1,218,806.16/1,681,674.12 = 783,450.96/x
  3. Step 3: Cross multiply
    1,218,806.16x = 1,681,674.12 × 783,450.96
  4. Step 4: Simplify right side
    1,218,806.16x = 1,317,509,203,721.16
  5. Step 5: Solve for x
    x = 1,317,509,203,721.16/1,218,806.16
  6. Step 6: Final answer
    x = 1,080,983.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.