Home / 1,947,048.75-2,685,181.91-1,621,440

Finding the Fourth Proportional to 1,947,048.75, 2,685,181.91 and 1,621,440

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Solution

The fourth proportional to 1,947,048.75, 2,685,181.91 and 1,621,440 is: 2,236,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,048.75 : 2,685,181.91 = 1,621,440 : x
  2. Step 2: Convert to fraction form
    1,947,048.75/2,685,181.91 = 1,621,440/x
  3. Step 3: Cross multiply
    1,947,048.75x = 2,685,181.91 × 1,621,440
  4. Step 4: Simplify right side
    1,947,048.75x = 4,353,861,348,043.20
  5. Step 5: Solve for x
    x = 4,353,861,348,043.20/1,947,048.75
  6. Step 6: Final answer
    x = 2,236,133.71

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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.