Finding the Fourth Proportional to 830,414.99, 1,245,179.61 and 430,062.77
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Solution
The fourth proportional to 830,414.99, 1,245,179.61 and 430,062.77 is: 644,864.80
Step by Step Solution
- Step 1: Write the proportion equation
830,414.99 : 1,245,179.61 = 430,062.77 : x - Step 2: Convert to fraction form
830,414.99/1,245,179.61 = 430,062.77/x - Step 3: Cross multiply
830,414.99x = 1,245,179.61 × 430,062.77 - Step 4: Simplify right side
830,414.99x = 535,505,395,337.07 - Step 5: Solve for x
x = 535,505,395,337.07/830,414.99 - Step 6: Final answer
x = 644,864.80
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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.