Finding the Fourth Proportional to 659,630.79, 910,858.62 and 415,023.38
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Solution
The fourth proportional to 659,630.79, 910,858.62 and 415,023.38 is: 573,089.72
Step by Step Solution
- Step 1: Write the proportion equation
659,630.79 : 910,858.62 = 415,023.38 : x - Step 2: Convert to fraction form
659,630.79/910,858.62 = 415,023.38/x - Step 3: Cross multiply
659,630.79x = 910,858.62 × 415,023.38 - Step 4: Simplify right side
659,630.79x = 378,027,625,100.48 - Step 5: Solve for x
x = 378,027,625,100.48/659,630.79 - Step 6: Final answer
x = 573,089.72
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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.