Finding the Fourth Proportional to 611,375.20, 917,062.80 and 471,407.20
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Solution
The fourth proportional to 611,375.20, 917,062.80 and 471,407.20 is: 707,110.80
Step by Step Solution
- Step 1: Write the proportion equation
611,375.20 : 917,062.80 = 471,407.20 : x - Step 2: Convert to fraction form
611,375.20/917,062.80 = 471,407.20/x - Step 3: Cross multiply
611,375.20x = 917,062.80 × 471,407.20 - Step 4: Simplify right side
611,375.20x = 432,310,006,772.16 - Step 5: Solve for x
x = 432,310,006,772.16/611,375.20 - Step 6: Final answer
x = 707,110.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.