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Finding the Fourth Proportional to 629,958.39, 869,320.92 and 358,021.54

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Solution

The fourth proportional to 629,958.39, 869,320.92 and 358,021.54 is: 494,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,958.39 : 869,320.92 = 358,021.54 : x
  2. Step 2: Convert to fraction form
    629,958.39/869,320.92 = 358,021.54/x
  3. Step 3: Cross multiply
    629,958.39x = 869,320.92 × 358,021.54
  4. Step 4: Simplify right side
    629,958.39x = 311,235,614,532.62
  5. Step 5: Solve for x
    x = 311,235,614,532.62/629,958.39
  6. Step 6: Final answer
    x = 494,057.42

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1.5x scale

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.