Finding the Fourth Proportional to 927,179.84, 1,279,491.24 and 513,715.11
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Solution
The fourth proportional to 927,179.84, 1,279,491.24 and 513,715.11 is: 708,917.47
Step by Step Solution
- Step 1: Write the proportion equation
927,179.84 : 1,279,491.24 = 513,715.11 : x - Step 2: Convert to fraction form
927,179.84/1,279,491.24 = 513,715.11/x - Step 3: Cross multiply
927,179.84x = 1,279,491.24 × 513,715.11 - Step 4: Simplify right side
927,179.84x = 657,293,979,907.00 - Step 5: Solve for x
x = 657,293,979,907.00/927,179.84 - Step 6: Final answer
x = 708,917.47
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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.