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Finding the Fourth Proportional to 439,389.44, 659,087.52 and 287,714.24

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Solution

The fourth proportional to 439,389.44, 659,087.52 and 287,714.24 is: 431,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,389.44 : 659,087.52 = 287,714.24 : x
  2. Step 2: Convert to fraction form
    439,389.44/659,087.52 = 287,714.24/x
  3. Step 3: Cross multiply
    439,389.44x = 659,087.52 × 287,714.24
  4. Step 4: Simplify right side
    439,389.44x = 189,628,864,910.29
  5. Step 5: Solve for x
    x = 189,628,864,910.29/439,389.44
  6. Step 6: Final answer
    x = 431,573.56

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1.5x scale

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.