Home / 1,326,680.88-1,990,042.92-380,047.92

Finding the Fourth Proportional to 1,326,680.88, 1,990,042.92 and 380,047.92

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Solution

The fourth proportional to 1,326,680.88, 1,990,042.92 and 380,047.92 is: 570,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,680.88 : 1,990,042.92 = 380,047.92 : x
  2. Step 2: Convert to fraction form
    1,326,680.88/1,990,042.92 = 380,047.92/x
  3. Step 3: Cross multiply
    1,326,680.88x = 1,990,042.92 × 380,047.92
  4. Step 4: Simplify right side
    1,326,680.88x = 756,311,672,456.73
  5. Step 5: Solve for x
    x = 756,311,672,456.73/1,326,680.88
  6. Step 6: Final answer
    x = 570,078.07

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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.