Finding the Fourth Proportional to 385,513.20, 577,686.60 and 326,026.80
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Solution
The fourth proportional to 385,513.20, 577,686.60 and 326,026.80 is: 488,546.99
Step by Step Solution
- Step 1: Write the proportion equation
385,513.20 : 577,686.60 = 326,026.80 : x - Step 2: Convert to fraction form
385,513.20/577,686.60 = 326,026.80/x - Step 3: Cross multiply
385,513.20x = 577,686.60 × 326,026.80 - Step 4: Simplify right side
385,513.20x = 188,341,313,600.88 - Step 5: Solve for x
x = 188,341,313,600.88/385,513.20 - Step 6: Final answer
x = 488,546.99
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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.