Home / 2,154,912.75-2,973,800.24-1,188,077.72

Finding the Fourth Proportional to 2,154,912.75, 2,973,800.24 and 1,188,077.72

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Solution

The fourth proportional to 2,154,912.75, 2,973,800.24 and 1,188,077.72 is: 1,639,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,912.75 : 2,973,800.24 = 1,188,077.72 : x
  2. Step 2: Convert to fraction form
    2,154,912.75/2,973,800.24 = 1,188,077.72/x
  3. Step 3: Cross multiply
    2,154,912.75x = 2,973,800.24 × 1,188,077.72
  4. Step 4: Simplify right side
    2,154,912.75x = 3,533,105,788,065.26
  5. Step 5: Solve for x
    x = 3,533,105,788,065.26/2,154,912.75
  6. Step 6: Final answer
    x = 1,639,558.63

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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.