Finding the Fourth Proportional to 543,279.28, 749,772.84 and 316,997.68
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Solution
The fourth proportional to 543,279.28, 749,772.84 and 316,997.68 is: 437,484.48
Step by Step Solution
- Step 1: Write the proportion equation
543,279.28 : 749,772.84 = 316,997.68 : x - Step 2: Convert to fraction form
543,279.28/749,772.84 = 316,997.68/x - Step 3: Cross multiply
543,279.28x = 749,772.84 × 316,997.68 - Step 4: Simplify right side
543,279.28x = 237,676,250,807.01 - Step 5: Solve for x
x = 237,676,250,807.01/543,279.28 - Step 6: Final answer
x = 437,484.48
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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.