Home / 1,222,879.44-1,688,228.81-942,865.03

Finding the Fourth Proportional to 1,222,879.44, 1,688,228.81 and 942,865.03

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Solution

The fourth proportional to 1,222,879.44, 1,688,228.81 and 942,865.03 is: 1,301,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,879.44 : 1,688,228.81 = 942,865.03 : x
  2. Step 2: Convert to fraction form
    1,222,879.44/1,688,228.81 = 942,865.03/x
  3. Step 3: Cross multiply
    1,222,879.44x = 1,688,228.81 × 942,865.03
  4. Step 4: Simplify right side
    1,222,879.44x = 1,591,771,896,371.12
  5. Step 5: Solve for x
    x = 1,591,771,896,371.12/1,222,879.44
  6. Step 6: Final answer
    x = 1,301,658.89

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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.