Finding the Fourth Proportional to 667,503.44, 921,159.21 and 361,579.84
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Solution
The fourth proportional to 667,503.44, 921,159.21 and 361,579.84 is: 498,982.60
Step by Step Solution
- Step 1: Write the proportion equation
667,503.44 : 921,159.21 = 361,579.84 : x - Step 2: Convert to fraction form
667,503.44/921,159.21 = 361,579.84/x - Step 3: Cross multiply
667,503.44x = 921,159.21 × 361,579.84 - Step 4: Simplify right side
667,503.44x = 333,072,599,766.33 - Step 5: Solve for x
x = 333,072,599,766.33/667,503.44 - Step 6: Final answer
x = 498,982.60
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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.