Home / 899,979-1,350,040.20-300,943.92

Finding the Fourth Proportional to 899,979, 1,350,040.20 and 300,943.92

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Solution

The fourth proportional to 899,979, 1,350,040.20 and 300,943.92 is: 451,439.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,979 : 1,350,040.20 = 300,943.92 : x
  2. Step 2: Convert to fraction form
    899,979/1,350,040.20 = 300,943.92/x
  3. Step 3: Cross multiply
    899,979x = 1,350,040.20 × 300,943.92
  4. Step 4: Simplify right side
    899,979x = 406,286,389,945.58
  5. Step 5: Solve for x
    x = 406,286,389,945.58/899,979
  6. Step 6: Final answer
    x = 451,439.86

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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.