Finding the Fourth Proportional to 777,528.60, 1,073,349.68 and 548,272.68
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Solution
The fourth proportional to 777,528.60, 1,073,349.68 and 548,272.68 is: 756,870.30
Step by Step Solution
- Step 1: Write the proportion equation
777,528.60 : 1,073,349.68 = 548,272.68 : x - Step 2: Convert to fraction form
777,528.60/1,073,349.68 = 548,272.68/x - Step 3: Cross multiply
777,528.60x = 1,073,349.68 × 548,272.68 - Step 4: Simplify right side
777,528.60x = 588,488,305,630.74 - Step 5: Solve for x
x = 588,488,305,630.74/777,528.60 - Step 6: Final answer
x = 756,870.30
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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.