Finding the Fourth Proportional to 783,305.12, 1,080,864.16 and 477,270.31
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Solution
The fourth proportional to 783,305.12, 1,080,864.16 and 477,270.31 is: 658,573.98
Step by Step Solution
- Step 1: Write the proportion equation
783,305.12 : 1,080,864.16 = 477,270.31 : x - Step 2: Convert to fraction form
783,305.12/1,080,864.16 = 477,270.31/x - Step 3: Cross multiply
783,305.12x = 1,080,864.16 × 477,270.31 - Step 4: Simplify right side
783,305.12x = 515,864,372,711.09 - Step 5: Solve for x
x = 515,864,372,711.09/783,305.12 - Step 6: Final answer
x = 658,573.98
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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.