Finding the Fourth Proportional to 527,203.62, 727,544.43 and 285,486.21
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Solution
The fourth proportional to 527,203.62, 727,544.43 and 285,486.21 is: 393,972.83
Step by Step Solution
- Step 1: Write the proportion equation
527,203.62 : 727,544.43 = 285,486.21 : x - Step 2: Convert to fraction form
527,203.62/727,544.43 = 285,486.21/x - Step 3: Cross multiply
527,203.62x = 727,544.43 × 285,486.21 - Step 4: Simplify right side
527,203.62x = 207,703,901,927.31 - Step 5: Solve for x
x = 207,703,901,927.31/527,203.62 - Step 6: Final answer
x = 393,972.83
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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.