Finding the Fourth Proportional to 3,565,085.51, 4,920,446.97 and 2,115,580.18
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Solution
The fourth proportional to 3,565,085.51, 4,920,446.97 and 2,115,580.18 is: 2,919,873.89
Step by Step Solution
- Step 1: Write the proportion equation
3,565,085.51 : 4,920,446.97 = 2,115,580.18 : x - Step 2: Convert to fraction form
3,565,085.51/4,920,446.97 = 2,115,580.18/x - Step 3: Cross multiply
3,565,085.51x = 4,920,446.97 × 2,115,580.18 - Step 4: Simplify right side
3,565,085.51x = 10,409,600,086,473.05 - Step 5: Solve for x
x = 10,409,600,086,473.05/3,565,085.51 - Step 6: Final answer
x = 2,919,873.89
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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.