Home / 1,984,815.79-2,738,035.89-1,296,889.81

Finding the Fourth Proportional to 1,984,815.79, 2,738,035.89 and 1,296,889.81

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Solution

The fourth proportional to 1,984,815.79, 2,738,035.89 and 1,296,889.81 is: 1,789,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,815.79 : 2,738,035.89 = 1,296,889.81 : x
  2. Step 2: Convert to fraction form
    1,984,815.79/2,738,035.89 = 1,296,889.81/x
  3. Step 3: Cross multiply
    1,984,815.79x = 2,738,035.89 × 1,296,889.81
  4. Step 4: Simplify right side
    1,984,815.79x = 3,550,930,838,310.19
  5. Step 5: Solve for x
    x = 3,550,930,838,310.19/1,984,815.79
  6. Step 6: Final answer
    x = 1,789,048.06

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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.