Home / 2,782,758.11-4,178,876.47-1,811,775.23

Finding the Fourth Proportional to 2,782,758.11, 4,178,876.47 and 1,811,775.23

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Solution

The fourth proportional to 2,782,758.11, 4,178,876.47 and 1,811,775.23 is: 2,720,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782,758.11 : 4,178,876.47 = 1,811,775.23 : x
  2. Step 2: Convert to fraction form
    2,782,758.11/4,178,876.47 = 1,811,775.23/x
  3. Step 3: Cross multiply
    2,782,758.11x = 4,178,876.47 × 1,811,775.23
  4. Step 4: Simplify right side
    2,782,758.11x = 7,571,184,867,822.80
  5. Step 5: Solve for x
    x = 7,571,184,867,822.80/2,782,758.11
  6. Step 6: Final answer
    x = 2,720,748.47

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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.