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Finding the Fourth Proportional to 437,405.91, 603,647.96 and 329,786.07

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Solution

The fourth proportional to 437,405.91, 603,647.96 and 329,786.07 is: 455,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,405.91 : 603,647.96 = 329,786.07 : x
  2. Step 2: Convert to fraction form
    437,405.91/603,647.96 = 329,786.07/x
  3. Step 3: Cross multiply
    437,405.91x = 603,647.96 × 329,786.07
  4. Step 4: Simplify right side
    437,405.91x = 199,074,686,742.99
  5. Step 5: Solve for x
    x = 199,074,686,742.99/437,405.91
  6. Step 6: Final answer
    x = 455,125.74

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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.