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Finding the Fourth Proportional to 629,450.71, 868,617.60 and 342,972.94

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Solution

The fourth proportional to 629,450.71, 868,617.60 and 342,972.94 is: 473,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,450.71 : 868,617.60 = 342,972.94 : x
  2. Step 2: Convert to fraction form
    629,450.71/868,617.60 = 342,972.94/x
  3. Step 3: Cross multiply
    629,450.71x = 868,617.60 × 342,972.94
  4. Step 4: Simplify right side
    629,450.71x = 297,912,332,007.74
  5. Step 5: Solve for x
    x = 297,912,332,007.74/629,450.71
  6. Step 6: Final answer
    x = 473,289.37

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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.