Finding the Fourth Proportional to 527,979.62, 727,907.01 and 419,444.08
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Solution
The fourth proportional to 527,979.62, 727,907.01 and 419,444.08 is: 578,272.86
Step by Step Solution
- Step 1: Write the proportion equation
527,979.62 : 727,907.01 = 419,444.08 : x - Step 2: Convert to fraction form
527,979.62/727,907.01 = 419,444.08/x - Step 3: Cross multiply
527,979.62x = 727,907.01 × 419,444.08 - Step 4: Simplify right side
527,979.62x = 305,316,286,135.00 - Step 5: Solve for x
x = 305,316,286,135.00/527,979.62 - Step 6: Final answer
x = 578,272.86
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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.