Finding the Fourth Proportional to 721,420.58, 995,523.97 and 394,726.52
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Solution
The fourth proportional to 721,420.58, 995,523.97 and 394,726.52 is: 544,702.66
Step by Step Solution
- Step 1: Write the proportion equation
721,420.58 : 995,523.97 = 394,726.52 : x - Step 2: Convert to fraction form
721,420.58/995,523.97 = 394,726.52/x - Step 3: Cross multiply
721,420.58x = 995,523.97 × 394,726.52 - Step 4: Simplify right side
721,420.58x = 392,959,705,303.43 - Step 5: Solve for x
x = 392,959,705,303.43/721,420.58 - Step 6: Final answer
x = 544,702.66
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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.