Finding the Fourth Proportional to 786,543.13, 1,085,521.67 and 447,062.41
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Solution
The fourth proportional to 786,543.13, 1,085,521.67 and 447,062.41 is: 616,998.50
Step by Step Solution
- Step 1: Write the proportion equation
786,543.13 : 1,085,521.67 = 447,062.41 : x - Step 2: Convert to fraction form
786,543.13/1,085,521.67 = 447,062.41/x - Step 3: Cross multiply
786,543.13x = 1,085,521.67 × 447,062.41 - Step 4: Simplify right side
786,543.13x = 485,295,933,897.43 - Step 5: Solve for x
x = 485,295,933,897.43/786,543.13 - Step 6: Final answer
x = 616,998.50
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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.