Home / 490,928.40-736,824.60-290,998.80

Finding the Fourth Proportional to 490,928.40, 736,824.60 and 290,998.80

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Solution

The fourth proportional to 490,928.40, 736,824.60 and 290,998.80 is: 436,754.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,928.40 : 736,824.60 = 290,998.80 : x
  2. Step 2: Convert to fraction form
    490,928.40/736,824.60 = 290,998.80/x
  3. Step 3: Cross multiply
    490,928.40x = 736,824.60 × 290,998.80
  4. Step 4: Simplify right side
    490,928.40x = 214,415,074,410.48
  5. Step 5: Solve for x
    x = 214,415,074,410.48/490,928.40
  6. Step 6: Final answer
    x = 436,754.27

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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.