Home / 2,945,785.32-4,064,826.60-1,638,728.55

Finding the Fourth Proportional to 2,945,785.32, 4,064,826.60 and 1,638,728.55

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Solution

The fourth proportional to 2,945,785.32, 4,064,826.60 and 1,638,728.55 is: 2,261,246.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,785.32 : 4,064,826.60 = 1,638,728.55 : x
  2. Step 2: Convert to fraction form
    2,945,785.32/4,064,826.60 = 1,638,728.55/x
  3. Step 3: Cross multiply
    2,945,785.32x = 4,064,826.60 × 1,638,728.55
  4. Step 4: Simplify right side
    2,945,785.32x = 6,661,147,400,219.43
  5. Step 5: Solve for x
    x = 6,661,147,400,219.43/2,945,785.32
  6. Step 6: Final answer
    x = 2,261,246.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.