Home / 2,768,950-4,153,874.28-1,085,140.72

Finding the Fourth Proportional to 2,768,950, 4,153,874.28 and 1,085,140.72

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Solution

The fourth proportional to 2,768,950, 4,153,874.28 and 1,085,140.72 is: 1,627,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768,950 : 4,153,874.28 = 1,085,140.72 : x
  2. Step 2: Convert to fraction form
    2,768,950/4,153,874.28 = 1,085,140.72/x
  3. Step 3: Cross multiply
    2,768,950x = 4,153,874.28 × 1,085,140.72
  4. Step 4: Simplify right side
    2,768,950x = 4,507,538,126,988.68
  5. Step 5: Solve for x
    x = 4,507,538,126,988.68/2,768,950
  6. Step 6: Final answer
    x = 1,627,887.15

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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.