Finding the Fourth Proportional to 665,431.92, 918,339.60 and 375,114.96
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Solution
The fourth proportional to 665,431.92, 918,339.60 and 375,114.96 is: 517,683.19
Step by Step Solution
- Step 1: Write the proportion equation
665,431.92 : 918,339.60 = 375,114.96 : x - Step 2: Convert to fraction form
665,431.92/918,339.60 = 375,114.96/x - Step 3: Cross multiply
665,431.92x = 918,339.60 × 375,114.96 - Step 4: Simplify right side
665,431.92x = 344,482,922,320.42 - Step 5: Solve for x
x = 344,482,922,320.42/665,431.92 - Step 6: Final answer
x = 517,683.19
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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.