Home / 1,909,120.54-2,863,812.03-561,316.18

Finding the Fourth Proportional to 1,909,120.54, 2,863,812.03 and 561,316.18

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Solution

The fourth proportional to 1,909,120.54, 2,863,812.03 and 561,316.18 is: 842,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,120.54 : 2,863,812.03 = 561,316.18 : x
  2. Step 2: Convert to fraction form
    1,909,120.54/2,863,812.03 = 561,316.18/x
  3. Step 3: Cross multiply
    1,909,120.54x = 2,863,812.03 × 561,316.18
  4. Step 4: Simplify right side
    1,909,120.54x = 1,607,504,028,917.65
  5. Step 5: Solve for x
    x = 1,607,504,028,917.65/1,909,120.54
  6. Step 6: Final answer
    x = 842,012.85

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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.