Finding the Fourth Proportional to 2,218,316.20, 3,061,278.35 and 1,199,720.95
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Solution
The fourth proportional to 2,218,316.20, 3,061,278.35 and 1,199,720.95 is: 1,655,615.99
Step by Step Solution
- Step 1: Write the proportion equation
2,218,316.20 : 3,061,278.35 = 1,199,720.95 : x - Step 2: Convert to fraction form
2,218,316.20/3,061,278.35 = 1,199,720.95/x - Step 3: Cross multiply
2,218,316.20x = 3,061,278.35 × 1,199,720.95 - Step 4: Simplify right side
2,218,316.20x = 3,672,679,770,276.43 - Step 5: Solve for x
x = 3,672,679,770,276.43/2,218,316.20 - Step 6: Final answer
x = 1,655,615.99
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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.