Finding the Fourth Proportional to 713,932.36, 985,234.26 and 391,643.08
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Solution
The fourth proportional to 713,932.36, 985,234.26 and 391,643.08 is: 540,471.62
Step by Step Solution
- Step 1: Write the proportion equation
713,932.36 : 985,234.26 = 391,643.08 : x - Step 2: Convert to fraction form
713,932.36/985,234.26 = 391,643.08/x - Step 3: Cross multiply
713,932.36x = 985,234.26 × 391,643.08 - Step 4: Simplify right side
713,932.36x = 385,860,180,107.92 - Step 5: Solve for x
x = 385,860,180,107.92/713,932.36 - Step 6: Final answer
x = 540,471.62
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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.