Finding the Fourth Proportional to 815,276.75, 1,125,114.30 and 471,101.27
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Solution
The fourth proportional to 815,276.75, 1,125,114.30 and 471,101.27 is: 650,138.47
Step by Step Solution
- Step 1: Write the proportion equation
815,276.75 : 1,125,114.30 = 471,101.27 : x - Step 2: Convert to fraction form
815,276.75/1,125,114.30 = 471,101.27/x - Step 3: Cross multiply
815,276.75x = 1,125,114.30 × 471,101.27 - Step 4: Simplify right side
815,276.75x = 530,042,779,492.74 - Step 5: Solve for x
x = 530,042,779,492.74/815,276.75 - Step 6: Final answer
x = 650,138.47
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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.