Home / 1,643,581.22-2,268,098.46-918,434.88

Finding the Fourth Proportional to 1,643,581.22, 2,268,098.46 and 918,434.88

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Solution

The fourth proportional to 1,643,581.22, 2,268,098.46 and 918,434.88 is: 1,267,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,581.22 : 2,268,098.46 = 918,434.88 : x
  2. Step 2: Convert to fraction form
    1,643,581.22/2,268,098.46 = 918,434.88/x
  3. Step 3: Cross multiply
    1,643,581.22x = 2,268,098.46 × 918,434.88
  4. Step 4: Simplify right side
    1,643,581.22x = 2,083,100,736,938.28
  5. Step 5: Solve for x
    x = 2,083,100,736,938.28/1,643,581.22
  6. Step 6: Final answer
    x = 1,267,415.76

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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.