Home / 3,840,123.20-5,760,184.80-1,315,860.80

Finding the Fourth Proportional to 3,840,123.20, 5,760,184.80 and 1,315,860.80

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Solution

The fourth proportional to 3,840,123.20, 5,760,184.80 and 1,315,860.80 is: 1,973,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840,123.20 : 5,760,184.80 = 1,315,860.80 : x
  2. Step 2: Convert to fraction form
    3,840,123.20/5,760,184.80 = 1,315,860.80/x
  3. Step 3: Cross multiply
    3,840,123.20x = 5,760,184.80 × 1,315,860.80
  4. Step 4: Simplify right side
    3,840,123.20x = 7,579,601,379,075.84
  5. Step 5: Solve for x
    x = 7,579,601,379,075.84/3,840,123.20
  6. Step 6: Final answer
    x = 1,973,791.20

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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.