Finding the Fourth Proportional to 2,318,649.66, 3,199,922.28 and 1,286,259.30
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Solution
The fourth proportional to 2,318,649.66, 3,199,922.28 and 1,286,259.30 is: 1,775,140.88
Step by Step Solution
- Step 1: Write the proportion equation
2,318,649.66 : 3,199,922.28 = 1,286,259.30 : x - Step 2: Convert to fraction form
2,318,649.66/3,199,922.28 = 1,286,259.30/x - Step 3: Cross multiply
2,318,649.66x = 3,199,922.28 × 1,286,259.30 - Step 4: Simplify right side
2,318,649.66x = 4,115,929,791,927.20 - Step 5: Solve for x
x = 4,115,929,791,927.20/2,318,649.66 - Step 6: Final answer
x = 1,775,140.88
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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.