Home / 2,178,427.30-3,006,268.31-1,211,558.02

Finding the Fourth Proportional to 2,178,427.30, 3,006,268.31 and 1,211,558.02

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Solution

The fourth proportional to 2,178,427.30, 3,006,268.31 and 1,211,558.02 is: 1,671,971.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,427.30 : 3,006,268.31 = 1,211,558.02 : x
  2. Step 2: Convert to fraction form
    2,178,427.30/3,006,268.31 = 1,211,558.02/x
  3. Step 3: Cross multiply
    2,178,427.30x = 3,006,268.31 × 1,211,558.02
  4. Step 4: Simplify right side
    2,178,427.30x = 3,642,268,481,252.35
  5. Step 5: Solve for x
    x = 3,642,268,481,252.35/2,178,427.30
  6. Step 6: Final answer
    x = 1,671,971.56

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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.