Finding the Fourth Proportional to 557,425.23, 769,482.09 and 376,382.13
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Solution
The fourth proportional to 557,425.23, 769,482.09 and 376,382.13 is: 519,566.20
Step by Step Solution
- Step 1: Write the proportion equation
557,425.23 : 769,482.09 = 376,382.13 : x - Step 2: Convert to fraction form
557,425.23/769,482.09 = 376,382.13/x - Step 3: Cross multiply
557,425.23x = 769,482.09 × 376,382.13 - Step 4: Simplify right side
557,425.23x = 289,619,308,031.05 - Step 5: Solve for x
x = 289,619,308,031.05/557,425.23 - Step 6: Final answer
x = 519,566.20
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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.