Home / 2,078,719.80-3,116,330.10-1,081,447.80

Finding the Fourth Proportional to 2,078,719.80, 3,116,330.10 and 1,081,447.80

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Solution

The fourth proportional to 2,078,719.80, 3,116,330.10 and 1,081,447.80 is: 1,621,261.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,719.80 : 3,116,330.10 = 1,081,447.80 : x
  2. Step 2: Convert to fraction form
    2,078,719.80/3,116,330.10 = 1,081,447.80/x
  3. Step 3: Cross multiply
    2,078,719.80x = 3,116,330.10 × 1,081,447.80
  4. Step 4: Simplify right side
    2,078,719.80x = 3,370,148,330,718.78
  5. Step 5: Solve for x
    x = 3,370,148,330,718.78/2,078,719.80
  6. Step 6: Final answer
    x = 1,621,261.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.