Home / 490,610.60-677,020.37-286,680.14

Finding the Fourth Proportional to 490,610.60, 677,020.37 and 286,680.14

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Solution

The fourth proportional to 490,610.60, 677,020.37 and 286,680.14 is: 395,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,610.60 : 677,020.37 = 286,680.14 : x
  2. Step 2: Convert to fraction form
    490,610.60/677,020.37 = 286,680.14/x
  3. Step 3: Cross multiply
    490,610.60x = 677,020.37 × 286,680.14
  4. Step 4: Simplify right side
    490,610.60x = 194,088,289,635.95
  5. Step 5: Solve for x
    x = 194,088,289,635.95/490,610.60
  6. Step 6: Final answer
    x = 395,605.58

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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.