Finding the Fourth Proportional to 457,947.15, 631,553.38 and 285,880.99
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Solution
The fourth proportional to 457,947.15, 631,553.38 and 285,880.99 is: 394,257.52
Step by Step Solution
- Step 1: Write the proportion equation
457,947.15 : 631,553.38 = 285,880.99 : x - Step 2: Convert to fraction form
457,947.15/631,553.38 = 285,880.99/x - Step 3: Cross multiply
457,947.15x = 631,553.38 × 285,880.99 - Step 4: Simplify right side
457,947.15x = 180,549,105,512.25 - Step 5: Solve for x
x = 180,549,105,512.25/457,947.15 - Step 6: Final answer
x = 394,257.52
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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.