Finding the Fourth Proportional to 665,176.61, 917,944.57 and 378,696.68
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Solution
The fourth proportional to 665,176.61, 917,944.57 and 378,696.68 is: 522,601.91
Step by Step Solution
- Step 1: Write the proportion equation
665,176.61 : 917,944.57 = 378,696.68 : x - Step 2: Convert to fraction form
665,176.61/917,944.57 = 378,696.68/x - Step 3: Cross multiply
665,176.61x = 917,944.57 × 378,696.68 - Step 4: Simplify right side
665,176.61x = 347,622,563,851.26 - Step 5: Solve for x
x = 347,622,563,851.26/665,176.61 - Step 6: Final answer
x = 522,601.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.