Home / 1,661,145.85-2,482,615-1,212,810.85

Finding the Fourth Proportional to 1,661,145.85, 2,482,615 and 1,212,810.85

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Solution

The fourth proportional to 1,661,145.85, 2,482,615 and 1,212,810.85 is: 1,812,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,145.85 : 2,482,615 = 1,212,810.85 : x
  2. Step 2: Convert to fraction form
    1,661,145.85/2,482,615 = 1,212,810.85/x
  3. Step 3: Cross multiply
    1,661,145.85x = 2,482,615 × 1,212,810.85
  4. Step 4: Simplify right side
    1,661,145.85x = 3,010,942,408,372.75
  5. Step 5: Solve for x
    x = 3,010,942,408,372.75/1,661,145.85
  6. Step 6: Final answer
    x = 1,812,569.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.