Finding the Fourth Proportional to 2,191,212.91, 3,023,867.42 and 1,224,343.95
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Solution
The fourth proportional to 2,191,212.91, 3,023,867.42 and 1,224,343.95 is: 1,689,591.08
Step by Step Solution
- Step 1: Write the proportion equation
2,191,212.91 : 3,023,867.42 = 1,224,343.95 : x - Step 2: Convert to fraction form
2,191,212.91/3,023,867.42 = 1,224,343.95/x - Step 3: Cross multiply
2,191,212.91x = 3,023,867.42 × 1,224,343.95 - Step 4: Simplify right side
2,191,212.91x = 3,702,253,778,218.25 - Step 5: Solve for x
x = 3,702,253,778,218.25/2,191,212.91 - Step 6: Final answer
x = 1,689,591.08
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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.