Home / 1,111,206.78-1,533,429.36-621,163.26

Finding the Fourth Proportional to 1,111,206.78, 1,533,429.36 and 621,163.26

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Solution

The fourth proportional to 1,111,206.78, 1,533,429.36 and 621,163.26 is: 857,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,206.78 : 1,533,429.36 = 621,163.26 : x
  2. Step 2: Convert to fraction form
    1,111,206.78/1,533,429.36 = 621,163.26/x
  3. Step 3: Cross multiply
    1,111,206.78x = 1,533,429.36 × 621,163.26
  4. Step 4: Simplify right side
    1,111,206.78x = 952,509,980,237.31
  5. Step 5: Solve for x
    x = 952,509,980,237.31/1,111,206.78
  6. Step 6: Final answer
    x = 857,185.18

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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.