Finding the Fourth Proportional to 1,551,643.18, 2,141,278.14 and 863,344
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Solution
The fourth proportional to 1,551,643.18, 2,141,278.14 and 863,344 is: 1,191,420.59
Step by Step Solution
- Step 1: Write the proportion equation
1,551,643.18 : 2,141,278.14 = 863,344 : x - Step 2: Convert to fraction form
1,551,643.18/2,141,278.14 = 863,344/x - Step 3: Cross multiply
1,551,643.18x = 2,141,278.14 × 863,344 - Step 4: Simplify right side
1,551,643.18x = 1,848,659,634,500.16 - Step 5: Solve for x
x = 1,848,659,634,500.16/1,551,643.18 - Step 6: Final answer
x = 1,191,420.59
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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.