Home / 1,178,811-1,768,216.50-430,857

Finding the Fourth Proportional to 1,178,811, 1,768,216.50 and 430,857

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Solution

The fourth proportional to 1,178,811, 1,768,216.50 and 430,857 is: 646,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,811 : 1,768,216.50 = 430,857 : x
  2. Step 2: Convert to fraction form
    1,178,811/1,768,216.50 = 430,857/x
  3. Step 3: Cross multiply
    1,178,811x = 1,768,216.50 × 430,857
  4. Step 4: Simplify right side
    1,178,811x = 761,848,456,540.50
  5. Step 5: Solve for x
    x = 761,848,456,540.50/1,178,811
  6. Step 6: Final answer
    x = 646,285.50

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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.