Home / 1,644,939.20-2,467,408.80-1,271,230.40

Finding the Fourth Proportional to 1,644,939.20, 2,467,408.80 and 1,271,230.40

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Solution

The fourth proportional to 1,644,939.20, 2,467,408.80 and 1,271,230.40 is: 1,906,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644,939.20 : 2,467,408.80 = 1,271,230.40 : x
  2. Step 2: Convert to fraction form
    1,644,939.20/2,467,408.80 = 1,271,230.40/x
  3. Step 3: Cross multiply
    1,644,939.20x = 2,467,408.80 × 1,271,230.40
  4. Step 4: Simplify right side
    1,644,939.20x = 3,136,645,075,787.52
  5. Step 5: Solve for x
    x = 3,136,645,075,787.52/1,644,939.20
  6. Step 6: Final answer
    x = 1,906,845.60

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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.