Home / 1,728,203.80-2,587,769.70-1,220,020.60

Finding the Fourth Proportional to 1,728,203.80, 2,587,769.70 and 1,220,020.60

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Solution

The fourth proportional to 1,728,203.80, 2,587,769.70 and 1,220,020.60 is: 1,826,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,203.80 : 2,587,769.70 = 1,220,020.60 : x
  2. Step 2: Convert to fraction form
    1,728,203.80/2,587,769.70 = 1,220,020.60/x
  3. Step 3: Cross multiply
    1,728,203.80x = 2,587,769.70 × 1,220,020.60
  4. Step 4: Simplify right side
    1,728,203.80x = 3,157,132,342,055.82
  5. Step 5: Solve for x
    x = 3,157,132,342,055.82/1,728,203.80
  6. Step 6: Final answer
    x = 1,826,828.72

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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.