Finding the Fourth Proportional to 612,171.40, 918,257.10 and 514,193.80
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Solution
The fourth proportional to 612,171.40, 918,257.10 and 514,193.80 is: 771,290.70
Step by Step Solution
- Step 1: Write the proportion equation
612,171.40 : 918,257.10 = 514,193.80 : x - Step 2: Convert to fraction form
612,171.40/918,257.10 = 514,193.80/x - Step 3: Cross multiply
612,171.40x = 918,257.10 × 514,193.80 - Step 4: Simplify right side
612,171.40x = 472,162,107,625.98 - Step 5: Solve for x
x = 472,162,107,625.98/612,171.40 - Step 6: Final answer
x = 771,290.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.