Finding the Fourth Proportional to 665,161.54, 917,921.37 and 363,357.70
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Solution
The fourth proportional to 665,161.54, 917,921.37 and 363,357.70 is: 501,432.78
Step by Step Solution
- Step 1: Write the proportion equation
665,161.54 : 917,921.37 = 363,357.70 : x - Step 2: Convert to fraction form
665,161.54/917,921.37 = 363,357.70/x - Step 3: Cross multiply
665,161.54x = 917,921.37 × 363,357.70 - Step 4: Simplify right side
665,161.54x = 333,533,797,784.05 - Step 5: Solve for x
x = 333,533,797,784.05/665,161.54 - Step 6: Final answer
x = 501,432.78
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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.