Home / 1,245,240.30-1,707,222.86-1,222,539.84

Finding the Fourth Proportional to 1,245,240.30, 1,707,222.86 and 1,222,539.84

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Solution

The fourth proportional to 1,245,240.30, 1,707,222.86 and 1,222,539.84 is: 1,676,100.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,240.30 : 1,707,222.86 = 1,222,539.84 : x
  2. Step 2: Convert to fraction form
    1,245,240.30/1,707,222.86 = 1,222,539.84/x
  3. Step 3: Cross multiply
    1,245,240.30x = 1,707,222.86 × 1,222,539.84
  4. Step 4: Simplify right side
    1,245,240.30x = 2,087,147,962,108.74
  5. Step 5: Solve for x
    x = 2,087,147,962,108.74/1,245,240.30
  6. Step 6: Final answer
    x = 1,676,100.56

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.