Home / 1,941,321.64-2,678,234.74-1,288,255.63

Finding the Fourth Proportional to 1,941,321.64, 2,678,234.74 and 1,288,255.63

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Solution

The fourth proportional to 1,941,321.64, 2,678,234.74 and 1,288,255.63 is: 1,777,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,321.64 : 2,678,234.74 = 1,288,255.63 : x
  2. Step 2: Convert to fraction form
    1,941,321.64/2,678,234.74 = 1,288,255.63/x
  3. Step 3: Cross multiply
    1,941,321.64x = 2,678,234.74 × 1,288,255.63
  4. Step 4: Simplify right side
    1,941,321.64x = 3,450,250,982,266.59
  5. Step 5: Solve for x
    x = 3,450,250,982,266.59/1,941,321.64
  6. Step 6: Final answer
    x = 1,777,269.11

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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.