Home / 1,643,556.24-2,268,112.32-918,431.28

Finding the Fourth Proportional to 1,643,556.24, 2,268,112.32 and 918,431.28

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Solution

The fourth proportional to 1,643,556.24, 2,268,112.32 and 918,431.28 is: 1,267,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,556.24 : 2,268,112.32 = 918,431.28 : x
  2. Step 2: Convert to fraction form
    1,643,556.24/2,268,112.32 = 918,431.28/x
  3. Step 3: Cross multiply
    1,643,556.24x = 2,268,112.32 × 918,431.28
  4. Step 4: Simplify right side
    1,643,556.24x = 2,083,105,301,241.37
  5. Step 5: Solve for x
    x = 2,083,105,301,241.37/1,643,556.24
  6. Step 6: Final answer
    x = 1,267,437.80

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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.