Home / 711,405.08-1,067,107.56-290,680.52

Finding the Fourth Proportional to 711,405.08, 1,067,107.56 and 290,680.52

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Solution

The fourth proportional to 711,405.08, 1,067,107.56 and 290,680.52 is: 436,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,405.08 : 1,067,107.56 = 290,680.52 : x
  2. Step 2: Convert to fraction form
    711,405.08/1,067,107.56 = 290,680.52/x
  3. Step 3: Cross multiply
    711,405.08x = 1,067,107.56 × 290,680.52
  4. Step 4: Simplify right side
    711,405.08x = 310,187,380,436.73
  5. Step 5: Solve for x
    x = 310,187,380,436.73/711,405.08
  6. Step 6: Final answer
    x = 436,020.76

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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.