Finding the Fourth Proportional to 660,221.13, 911,126.82 and 373,735.05
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Solution
The fourth proportional to 660,221.13, 911,126.82 and 373,735.05 is: 515,766.63
Step by Step Solution
- Step 1: Write the proportion equation
660,221.13 : 911,126.82 = 373,735.05 : x - Step 2: Convert to fraction form
660,221.13/911,126.82 = 373,735.05/x - Step 3: Cross multiply
660,221.13x = 911,126.82 × 373,735.05 - Step 4: Simplify right side
660,221.13x = 340,520,027,629.04 - Step 5: Solve for x
x = 340,520,027,629.04/660,221.13 - Step 6: Final answer
x = 515,766.63
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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.