Home / 490,008.40-734,839.80-223,896.40

Finding the Fourth Proportional to 490,008.40, 734,839.80 and 223,896.40

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Solution

The fourth proportional to 490,008.40, 734,839.80 and 223,896.40 is: 335,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,008.40 : 734,839.80 = 223,896.40 : x
  2. Step 2: Convert to fraction form
    490,008.40/734,839.80 = 223,896.40/x
  3. Step 3: Cross multiply
    490,008.40x = 734,839.80 × 223,896.40
  4. Step 4: Simplify right side
    490,008.40x = 164,527,985,796.72
  5. Step 5: Solve for x
    x = 164,527,985,796.72/490,008.40
  6. Step 6: Final answer
    x = 335,765.64

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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.