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Finding the Fourth Proportional to 558,668.28, 770,959.31 and 304,021.29

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Solution

The fourth proportional to 558,668.28, 770,959.31 and 304,021.29 is: 419,547.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,668.28 : 770,959.31 = 304,021.29 : x
  2. Step 2: Convert to fraction form
    558,668.28/770,959.31 = 304,021.29/x
  3. Step 3: Cross multiply
    558,668.28x = 770,959.31 × 304,021.29
  4. Step 4: Simplify right side
    558,668.28x = 234,388,042,443.60
  5. Step 5: Solve for x
    x = 234,388,042,443.60/558,668.28
  6. Step 6: Final answer
    x = 419,547.79

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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.