Home / 398,932.95-550,889.67-296,921.15

Finding the Fourth Proportional to 398,932.95, 550,889.67 and 296,921.15

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Solution

The fourth proportional to 398,932.95, 550,889.67 and 296,921.15 is: 410,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,932.95 : 550,889.67 = 296,921.15 : x
  2. Step 2: Convert to fraction form
    398,932.95/550,889.67 = 296,921.15/x
  3. Step 3: Cross multiply
    398,932.95x = 550,889.67 × 296,921.15
  4. Step 4: Simplify right side
    398,932.95x = 163,570,790,100.47
  5. Step 5: Solve for x
    x = 163,570,790,100.47/398,932.95
  6. Step 6: Final answer
    x = 410,020.76

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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.