Finding the Fourth Proportional to 629,813.07, 943,786.49 and 518,285.79
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Solution
The fourth proportional to 629,813.07, 943,786.49 and 518,285.79 is: 776,660.80
Step by Step Solution
- Step 1: Write the proportion equation
629,813.07 : 943,786.49 = 518,285.79 : x - Step 2: Convert to fraction form
629,813.07/943,786.49 = 518,285.79/x - Step 3: Cross multiply
629,813.07x = 943,786.49 × 518,285.79 - Step 4: Simplify right side
629,813.07x = 489,151,123,969.55 - Step 5: Solve for x
x = 489,151,123,969.55/629,813.07 - Step 6: Final answer
x = 776,660.80
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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.