Home / 1,257,806.84-1,735,804.54-684,878.36

Finding the Fourth Proportional to 1,257,806.84, 1,735,804.54 and 684,878.36

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Solution

The fourth proportional to 1,257,806.84, 1,735,804.54 and 684,878.36 is: 945,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,806.84 : 1,735,804.54 = 684,878.36 : x
  2. Step 2: Convert to fraction form
    1,257,806.84/1,735,804.54 = 684,878.36/x
  3. Step 3: Cross multiply
    1,257,806.84x = 1,735,804.54 × 684,878.36
  4. Step 4: Simplify right side
    1,257,806.84x = 1,188,814,966,635.75
  5. Step 5: Solve for x
    x = 1,188,814,966,635.75/1,257,806.84
  6. Step 6: Final answer
    x = 945,149.07

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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.