Home / 1,289,190.48-1,933,121.72-578,609.36

Finding the Fourth Proportional to 1,289,190.48, 1,933,121.72 and 578,609.36

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Solution

The fourth proportional to 1,289,190.48, 1,933,121.72 and 578,609.36 is: 867,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,190.48 : 1,933,121.72 = 578,609.36 : x
  2. Step 2: Convert to fraction form
    1,289,190.48/1,933,121.72 = 578,609.36/x
  3. Step 3: Cross multiply
    1,289,190.48x = 1,933,121.72 × 578,609.36
  4. Step 4: Simplify right side
    1,289,190.48x = 1,118,522,321,211.30
  5. Step 5: Solve for x
    x = 1,118,522,321,211.30/1,289,190.48
  6. Step 6: Final answer
    x = 867,616.03

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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.