Finding the Fourth Proportional to 816,505.99, 1,126,714.46 and 453,907.78
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Solution
The fourth proportional to 816,505.99, 1,126,714.46 and 453,907.78 is: 626,357.26
Step by Step Solution
- Step 1: Write the proportion equation
816,505.99 : 1,126,714.46 = 453,907.78 : x - Step 2: Convert to fraction form
816,505.99/1,126,714.46 = 453,907.78/x - Step 3: Cross multiply
816,505.99x = 1,126,714.46 × 453,907.78 - Step 4: Simplify right side
816,505.99x = 511,424,454,146.17 - Step 5: Solve for x
x = 511,424,454,146.17/816,505.99 - Step 6: Final answer
x = 626,357.26
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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.