Home / 1,397,268.90-2,095,903.35-1,220,121.90

Finding the Fourth Proportional to 1,397,268.90, 2,095,903.35 and 1,220,121.90

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Solution

The fourth proportional to 1,397,268.90, 2,095,903.35 and 1,220,121.90 is: 1,830,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,268.90 : 2,095,903.35 = 1,220,121.90 : x
  2. Step 2: Convert to fraction form
    1,397,268.90/2,095,903.35 = 1,220,121.90/x
  3. Step 3: Cross multiply
    1,397,268.90x = 2,095,903.35 × 1,220,121.90
  4. Step 4: Simplify right side
    1,397,268.90x = 2,557,257,577,618.36
  5. Step 5: Solve for x
    x = 2,557,257,577,618.36/1,397,268.90
  6. Step 6: Final answer
    x = 1,830,182.85

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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.