Finding the Fourth Proportional to 716,841.64, 988,194.18 and 501,311.08
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Solution
The fourth proportional to 716,841.64, 988,194.18 and 501,311.08 is: 691,076.89
Step by Step Solution
- Step 1: Write the proportion equation
716,841.64 : 988,194.18 = 501,311.08 : x - Step 2: Convert to fraction form
716,841.64/988,194.18 = 501,311.08/x - Step 3: Cross multiply
716,841.64x = 988,194.18 × 501,311.08 - Step 4: Simplify right side
716,841.64x = 495,392,691,625.51 - Step 5: Solve for x
x = 495,392,691,625.51/716,841.64 - Step 6: Final answer
x = 691,076.89
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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.