Finding the Fourth Proportional to 521,553.14, 719,718.44 and 320,310.26
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Solution
The fourth proportional to 521,553.14, 719,718.44 and 320,310.26 is: 442,012.87
Step by Step Solution
- Step 1: Write the proportion equation
521,553.14 : 719,718.44 = 320,310.26 : x - Step 2: Convert to fraction form
521,553.14/719,718.44 = 320,310.26/x - Step 3: Cross multiply
521,553.14x = 719,718.44 × 320,310.26 - Step 4: Simplify right side
521,553.14x = 230,533,200,643.19 - Step 5: Solve for x
x = 230,533,200,643.19/521,553.14 - Step 6: Final answer
x = 442,012.87
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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.