Finding the Fourth Proportional to 717,193.49, 989,748.80 and 394,915.12
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Solution
The fourth proportional to 717,193.49, 989,748.80 and 394,915.12 is: 544,994.86
Step by Step Solution
- Step 1: Write the proportion equation
717,193.49 : 989,748.80 = 394,915.12 : x - Step 2: Convert to fraction form
717,193.49/989,748.80 = 394,915.12/x - Step 3: Cross multiply
717,193.49x = 989,748.80 × 394,915.12 - Step 4: Simplify right side
717,193.49x = 390,866,766,621.65 - Step 5: Solve for x
x = 390,866,766,621.65/717,193.49 - Step 6: Final answer
x = 544,994.86
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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.