Finding the Fourth Proportional to 858,680.23, 1,288,024.79 and 503,445.13
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Solution
The fourth proportional to 858,680.23, 1,288,024.79 and 503,445.13 is: 755,170.30
Step by Step Solution
- Step 1: Write the proportion equation
858,680.23 : 1,288,024.79 = 503,445.13 : x - Step 2: Convert to fraction form
858,680.23/1,288,024.79 = 503,445.13/x - Step 3: Cross multiply
858,680.23x = 1,288,024.79 × 503,445.13 - Step 4: Simplify right side
858,680.23x = 648,449,807,844.77 - Step 5: Solve for x
x = 648,449,807,844.77/858,680.23 - Step 6: Final answer
x = 755,170.30
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1.5x scale
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.