Home / 2,586,378.40-3,879,567.90-789,271.29

Finding the Fourth Proportional to 2,586,378.40, 3,879,567.90 and 789,271.29

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Solution

The fourth proportional to 2,586,378.40, 3,879,567.90 and 789,271.29 is: 1,183,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586,378.40 : 3,879,567.90 = 789,271.29 : x
  2. Step 2: Convert to fraction form
    2,586,378.40/3,879,567.90 = 789,271.29/x
  3. Step 3: Cross multiply
    2,586,378.40x = 3,879,567.90 × 789,271.29
  4. Step 4: Simplify right side
    2,586,378.40x = 3,062,031,561,075.59
  5. Step 5: Solve for x
    x = 3,062,031,561,075.59/2,586,378.40
  6. Step 6: Final answer
    x = 1,183,907.03

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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.