Finding the Fourth Proportional to 639,118.04, 882,302.46 and 397,478.44
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Solution
The fourth proportional to 639,118.04, 882,302.46 and 397,478.44 is: 548,718.99
Step by Step Solution
- Step 1: Write the proportion equation
639,118.04 : 882,302.46 = 397,478.44 : x - Step 2: Convert to fraction form
639,118.04/882,302.46 = 397,478.44/x - Step 3: Cross multiply
639,118.04x = 882,302.46 × 397,478.44 - Step 4: Simplify right side
639,118.04x = 350,696,205,408.96 - Step 5: Solve for x
x = 350,696,205,408.96/639,118.04 - Step 6: Final answer
x = 548,718.99
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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.