Finding the Fourth Proportional to 548,909.80, 823,364.70 and 338,957.80
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Solution
The fourth proportional to 548,909.80, 823,364.70 and 338,957.80 is: 508,436.70
Step by Step Solution
- Step 1: Write the proportion equation
548,909.80 : 823,364.70 = 338,957.80 : x - Step 2: Convert to fraction form
548,909.80/823,364.70 = 338,957.80/x - Step 3: Cross multiply
548,909.80x = 823,364.70 × 338,957.80 - Step 4: Simplify right side
548,909.80x = 279,085,887,309.66 - Step 5: Solve for x
x = 279,085,887,309.66/548,909.80 - Step 6: Final answer
x = 508,436.70
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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.