Home / 1,993,676.80-2,991,206.40-872,550.40

Finding the Fourth Proportional to 1,993,676.80, 2,991,206.40 and 872,550.40

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Solution

The fourth proportional to 1,993,676.80, 2,991,206.40 and 872,550.40 is: 1,309,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,676.80 : 2,991,206.40 = 872,550.40 : x
  2. Step 2: Convert to fraction form
    1,993,676.80/2,991,206.40 = 872,550.40/x
  3. Step 3: Cross multiply
    1,993,676.80x = 2,991,206.40 × 872,550.40
  4. Step 4: Simplify right side
    1,993,676.80x = 2,609,978,340,802.56
  5. Step 5: Solve for x
    x = 2,609,978,340,802.56/1,993,676.80
  6. Step 6: Final answer
    x = 1,309,128.11

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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.