Home / 1,382,240.84-1,907,603.26-770,591.61

Finding the Fourth Proportional to 1,382,240.84, 1,907,603.26 and 770,591.61

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Solution

The fourth proportional to 1,382,240.84, 1,907,603.26 and 770,591.61 is: 1,063,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,240.84 : 1,907,603.26 = 770,591.61 : x
  2. Step 2: Convert to fraction form
    1,382,240.84/1,907,603.26 = 770,591.61/x
  3. Step 3: Cross multiply
    1,382,240.84x = 1,907,603.26 × 770,591.61
  4. Step 4: Simplify right side
    1,382,240.84x = 1,469,983,065,438.17
  5. Step 5: Solve for x
    x = 1,469,983,065,438.17/1,382,240.84
  6. Step 6: Final answer
    x = 1,063,478.25

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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.