Home / 825,713.78-1,238,273.51-285,823.37

Finding the Fourth Proportional to 825,713.78, 1,238,273.51 and 285,823.37

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Solution

The fourth proportional to 825,713.78, 1,238,273.51 and 285,823.37 is: 428,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,713.78 : 1,238,273.51 = 285,823.37 : x
  2. Step 2: Convert to fraction form
    825,713.78/1,238,273.51 = 285,823.37/x
  3. Step 3: Cross multiply
    825,713.78x = 1,238,273.51 × 285,823.37
  4. Step 4: Simplify right side
    825,713.78x = 353,927,509,276.50
  5. Step 5: Solve for x
    x = 353,927,509,276.50/825,713.78
  6. Step 6: Final answer
    x = 428,632.20

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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.