Home / 1,189,652.44-1,785,153.56-642,538.08

Finding the Fourth Proportional to 1,189,652.44, 1,785,153.56 and 642,538.08

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Solution

The fourth proportional to 1,189,652.44, 1,785,153.56 and 642,538.08 is: 964,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,652.44 : 1,785,153.56 = 642,538.08 : x
  2. Step 2: Convert to fraction form
    1,189,652.44/1,785,153.56 = 642,538.08/x
  3. Step 3: Cross multiply
    1,189,652.44x = 1,785,153.56 × 642,538.08
  4. Step 4: Simplify right side
    1,189,652.44x = 1,147,029,140,947.56
  5. Step 5: Solve for x
    x = 1,147,029,140,947.56/1,189,652.44
  6. Step 6: Final answer
    x = 964,171.64

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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.