Home / 1,643,577.82-2,268,093.78-918,431.48

Finding the Fourth Proportional to 1,643,577.82, 2,268,093.78 and 918,431.48

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Solution

The fourth proportional to 1,643,577.82, 2,268,093.78 and 918,431.48 is: 1,267,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,577.82 : 2,268,093.78 = 918,431.48 : x
  2. Step 2: Convert to fraction form
    1,643,577.82/2,268,093.78 = 918,431.48/x
  3. Step 3: Cross multiply
    1,643,577.82x = 2,268,093.78 × 918,431.48
  4. Step 4: Simplify right side
    1,643,577.82x = 2,083,088,732,814.43
  5. Step 5: Solve for x
    x = 2,083,088,732,814.43/1,643,577.82
  6. Step 6: Final answer
    x = 1,267,411.08

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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.