Finding the Fourth Proportional to 643,324.18, 887,770.23 and 371,382.88
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Solution
The fourth proportional to 643,324.18, 887,770.23 and 371,382.88 is: 512,498.48
Step by Step Solution
- Step 1: Write the proportion equation
643,324.18 : 887,770.23 = 371,382.88 : x - Step 2: Convert to fraction form
643,324.18/887,770.23 = 371,382.88/x - Step 3: Cross multiply
643,324.18x = 887,770.23 × 371,382.88 - Step 4: Simplify right side
643,324.18x = 329,702,664,795.66 - Step 5: Solve for x
x = 329,702,664,795.66/643,324.18 - Step 6: Final answer
x = 512,498.48
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1.5x scale
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.