Finding the Fourth Proportional to 543,179.12, 749,677.32 and 316,824.68
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Solution
The fourth proportional to 543,179.12, 749,677.32 and 316,824.68 is: 437,270.63
Step by Step Solution
- Step 1: Write the proportion equation
543,179.12 : 749,677.32 = 316,824.68 : x - Step 2: Convert to fraction form
543,179.12/749,677.32 = 316,824.68/x - Step 3: Cross multiply
543,179.12x = 749,677.32 × 316,824.68 - Step 4: Simplify right side
543,179.12x = 237,516,277,012.26 - Step 5: Solve for x
x = 237,516,277,012.26/543,179.12 - Step 6: Final answer
x = 437,270.63
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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.