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Finding the Fourth Proportional to 1,330,986.90, 1,996,480.35 and 1,094,790.90

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Solution

The fourth proportional to 1,330,986.90, 1,996,480.35 and 1,094,790.90 is: 1,642,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,986.90 : 1,996,480.35 = 1,094,790.90 : x
  2. Step 2: Convert to fraction form
    1,330,986.90/1,996,480.35 = 1,094,790.90/x
  3. Step 3: Cross multiply
    1,330,986.90x = 1,996,480.35 × 1,094,790.90
  4. Step 4: Simplify right side
    1,330,986.90x = 2,185,728,519,208.82
  5. Step 5: Solve for x
    x = 2,185,728,519,208.82/1,330,986.90
  6. Step 6: Final answer
    x = 1,642,186.35

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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.