Finding the Fourth Proportional to 861,350.70, 1,188,663.98 and 479,467.69
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Solution
The fourth proportional to 861,350.70, 1,188,663.98 and 479,467.69 is: 661,665.42
Step by Step Solution
- Step 1: Write the proportion equation
861,350.70 : 1,188,663.98 = 479,467.69 : x - Step 2: Convert to fraction form
861,350.70/1,188,663.98 = 479,467.69/x - Step 3: Cross multiply
861,350.70x = 1,188,663.98 × 479,467.69 - Step 4: Simplify right side
861,350.70x = 569,925,972,676.81 - Step 5: Solve for x
x = 569,925,972,676.81/861,350.70 - Step 6: Final answer
x = 661,665.42
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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.