Finding the Fourth Proportional to 643,310.88, 888,366.60 and 414,265.68
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Solution
The fourth proportional to 643,310.88, 888,366.60 and 414,265.68 is: 572,071.46
Step by Step Solution
- Step 1: Write the proportion equation
643,310.88 : 888,366.60 = 414,265.68 : x - Step 2: Convert to fraction form
643,310.88/888,366.60 = 414,265.68/x - Step 3: Cross multiply
643,310.88x = 888,366.60 × 414,265.68 - Step 4: Simplify right side
643,310.88x = 368,019,793,638.29 - Step 5: Solve for x
x = 368,019,793,638.29/643,310.88 - Step 6: Final answer
x = 572,071.46
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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.