Home / 1,511,216.39-2,081,931.74-1,051,540.38

Finding the Fourth Proportional to 1,511,216.39, 2,081,931.74 and 1,051,540.38

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Solution

The fourth proportional to 1,511,216.39, 2,081,931.74 and 1,051,540.38 is: 1,448,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,216.39 : 2,081,931.74 = 1,051,540.38 : x
  2. Step 2: Convert to fraction form
    1,511,216.39/2,081,931.74 = 1,051,540.38/x
  3. Step 3: Cross multiply
    1,511,216.39x = 2,081,931.74 × 1,051,540.38
  4. Step 4: Simplify right side
    1,511,216.39x = 2,189,235,282,604.00
  5. Step 5: Solve for x
    x = 2,189,235,282,604.00/1,511,216.39
  6. Step 6: Final answer
    x = 1,448,657.72

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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.