Home / 1,971,825.31-2,721,120.74-1,066,407.31

Finding the Fourth Proportional to 1,971,825.31, 2,721,120.74 and 1,066,407.31

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Solution

The fourth proportional to 1,971,825.31, 2,721,120.74 and 1,066,407.31 is: 1,471,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,825.31 : 2,721,120.74 = 1,066,407.31 : x
  2. Step 2: Convert to fraction form
    1,971,825.31/2,721,120.74 = 1,066,407.31/x
  3. Step 3: Cross multiply
    1,971,825.31x = 2,721,120.74 × 1,066,407.31
  4. Step 4: Simplify right side
    1,971,825.31x = 2,901,823,040,392.80
  5. Step 5: Solve for x
    x = 2,901,823,040,392.80/1,971,825.31
  6. Step 6: Final answer
    x = 1,471,643.07

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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.