Finding the Fourth Proportional to 677,619.88, 935,108.94 and 371,689.96
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Solution
The fourth proportional to 677,619.88, 935,108.94 and 371,689.96 is: 512,928.58
Step by Step Solution
- Step 1: Write the proportion equation
677,619.88 : 935,108.94 = 371,689.96 : x - Step 2: Convert to fraction form
677,619.88/935,108.94 = 371,689.96/x - Step 3: Cross multiply
677,619.88x = 935,108.94 × 371,689.96 - Step 4: Simplify right side
677,619.88x = 347,570,604,504.24 - Step 5: Solve for x
x = 347,570,604,504.24/677,619.88 - Step 6: Final answer
x = 512,928.58
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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.