Home / 899,947.80-1,349,993.55-300,912.12

Finding the Fourth Proportional to 899,947.80, 1,349,993.55 and 300,912.12

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Solution

The fourth proportional to 899,947.80, 1,349,993.55 and 300,912.12 is: 451,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,947.80 : 1,349,993.55 = 300,912.12 : x
  2. Step 2: Convert to fraction form
    899,947.80/1,349,993.55 = 300,912.12/x
  3. Step 3: Cross multiply
    899,947.80x = 1,349,993.55 × 300,912.12
  4. Step 4: Simplify right side
    899,947.80x = 406,229,421,116.83
  5. Step 5: Solve for x
    x = 406,229,421,116.83/899,947.80
  6. Step 6: Final answer
    x = 451,392.20

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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.