Home / 490,830.68-677,069.70-294,546.36

Finding the Fourth Proportional to 490,830.68, 677,069.70 and 294,546.36

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Solution

The fourth proportional to 490,830.68, 677,069.70 and 294,546.36 is: 406,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,830.68 : 677,069.70 = 294,546.36 : x
  2. Step 2: Convert to fraction form
    490,830.68/677,069.70 = 294,546.36/x
  3. Step 3: Cross multiply
    490,830.68x = 677,069.70 × 294,546.36
  4. Step 4: Simplify right side
    490,830.68x = 199,428,415,601.29
  5. Step 5: Solve for x
    x = 199,428,415,601.29/490,830.68
  6. Step 6: Final answer
    x = 406,307.97

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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.