Home / 853,119.16-1,278,694.44-320,300.36

Finding the Fourth Proportional to 853,119.16, 1,278,694.44 and 320,300.36

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Solution

The fourth proportional to 853,119.16, 1,278,694.44 and 320,300.36 is: 480,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,119.16 : 1,278,694.44 = 320,300.36 : x
  2. Step 2: Convert to fraction form
    853,119.16/1,278,694.44 = 320,300.36/x
  3. Step 3: Cross multiply
    853,119.16x = 1,278,694.44 × 320,300.36
  4. Step 4: Simplify right side
    853,119.16x = 409,566,289,462.00
  5. Step 5: Solve for x
    x = 409,566,289,462.00/853,119.16
  6. Step 6: Final answer
    x = 480,080.99

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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.