Home / 490,736.16-677,239.92-275,943.60

Finding the Fourth Proportional to 490,736.16, 677,239.92 and 275,943.60

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Solution

The fourth proportional to 490,736.16, 677,239.92 and 275,943.60 is: 380,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,736.16 : 677,239.92 = 275,943.60 : x
  2. Step 2: Convert to fraction form
    490,736.16/677,239.92 = 275,943.60/x
  3. Step 3: Cross multiply
    490,736.16x = 677,239.92 × 275,943.60
  4. Step 4: Simplify right side
    490,736.16x = 186,880,021,588.51
  5. Step 5: Solve for x
    x = 186,880,021,588.51/490,736.16
  6. Step 6: Final answer
    x = 380,815.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.