Finding the Fourth Proportional to 667,621.50, 921,317.67 and 365,809.02
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Solution
The fourth proportional to 667,621.50, 921,317.67 and 365,809.02 is: 504,816.45
Step by Step Solution
- Step 1: Write the proportion equation
667,621.50 : 921,317.67 = 365,809.02 : x - Step 2: Convert to fraction form
667,621.50/921,317.67 = 365,809.02/x - Step 3: Cross multiply
667,621.50x = 921,317.67 × 365,809.02 - Step 4: Simplify right side
667,621.50x = 337,026,313,971.38 - Step 5: Solve for x
x = 337,026,313,971.38/667,621.50 - Step 6: Final answer
x = 504,816.45
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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.