Home / 1,112,489.37-1,664,163.81-888,287.70

Finding the Fourth Proportional to 1,112,489.37, 1,664,163.81 and 888,287.70

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Solution

The fourth proportional to 1,112,489.37, 1,664,163.81 and 888,287.70 is: 1,328,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,489.37 : 1,664,163.81 = 888,287.70 : x
  2. Step 2: Convert to fraction form
    1,112,489.37/1,664,163.81 = 888,287.70/x
  3. Step 3: Cross multiply
    1,112,489.37x = 1,664,163.81 × 888,287.70
  4. Step 4: Simplify right side
    1,112,489.37x = 1,478,256,243,208.14
  5. Step 5: Solve for x
    x = 1,478,256,243,208.14/1,112,489.37
  6. Step 6: Final answer
    x = 1,328,782.35

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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.