Finding the Fourth Proportional to 665,176.23, 917,944.05 and 378,696.31
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Solution
The fourth proportional to 665,176.23, 917,944.05 and 378,696.31 is: 522,601.39
Step by Step Solution
- Step 1: Write the proportion equation
665,176.23 : 917,944.05 = 378,696.31 : x - Step 2: Convert to fraction form
665,176.23/917,944.05 = 378,696.31/x - Step 3: Cross multiply
665,176.23x = 917,944.05 × 378,696.31 - Step 4: Simplify right side
665,176.23x = 347,622,023,646.71 - Step 5: Solve for x
x = 347,622,023,646.71/665,176.23 - Step 6: Final answer
x = 522,601.39
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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.