Home / 711,404.56-1,067,108.66-290,680.44

Finding the Fourth Proportional to 711,404.56, 1,067,108.66 and 290,680.44

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Solution

The fourth proportional to 711,404.56, 1,067,108.66 and 290,680.44 is: 436,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,404.56 : 1,067,108.66 = 290,680.44 : x
  2. Step 2: Convert to fraction form
    711,404.56/1,067,108.66 = 290,680.44/x
  3. Step 3: Cross multiply
    711,404.56x = 1,067,108.66 × 290,680.44
  4. Step 4: Simplify right side
    711,404.56x = 310,187,612,086.68
  5. Step 5: Solve for x
    x = 310,187,612,086.68/711,404.56
  6. Step 6: Final answer
    x = 436,021.40

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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.