Finding the Fourth Proportional to 757,688.68, 1,045,951.36 and 499,718.66
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Solution
The fourth proportional to 757,688.68, 1,045,951.36 and 499,718.66 is: 689,836.64
Step by Step Solution
- Step 1: Write the proportion equation
757,688.68 : 1,045,951.36 = 499,718.66 : x - Step 2: Convert to fraction form
757,688.68/1,045,951.36 = 499,718.66/x - Step 3: Cross multiply
757,688.68x = 1,045,951.36 × 499,718.66 - Step 4: Simplify right side
757,688.68x = 522,681,412,044.38 - Step 5: Solve for x
x = 522,681,412,044.38/757,688.68 - Step 6: Final answer
x = 689,836.64
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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.