Finding the Fourth Proportional to 816,644.16, 1,126,972.44 and 454,101.12
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Solution
The fourth proportional to 816,644.16, 1,126,972.44 and 454,101.12 is: 626,661.49
Step by Step Solution
- Step 1: Write the proportion equation
816,644.16 : 1,126,972.44 = 454,101.12 : x - Step 2: Convert to fraction form
816,644.16/1,126,972.44 = 454,101.12/x - Step 3: Cross multiply
816,644.16x = 1,126,972.44 × 454,101.12 - Step 4: Simplify right side
816,644.16x = 511,759,447,213.13 - Step 5: Solve for x
x = 511,759,447,213.13/816,644.16 - Step 6: Final answer
x = 626,661.49
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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.