Finding the Fourth Proportional to 2,166,310.60, 2,989,602.06 and 1,199,440.84
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Solution
The fourth proportional to 2,166,310.60, 2,989,602.06 and 1,199,440.84 is: 1,655,280.09
Step by Step Solution
- Step 1: Write the proportion equation
2,166,310.60 : 2,989,602.06 = 1,199,440.84 : x - Step 2: Convert to fraction form
2,166,310.60/2,989,602.06 = 1,199,440.84/x - Step 3: Cross multiply
2,166,310.60x = 2,989,602.06 × 1,199,440.84 - Step 4: Simplify right side
2,166,310.60x = 3,585,850,806,112.13 - Step 5: Solve for x
x = 3,585,850,806,112.13/2,166,310.60 - Step 6: Final answer
x = 1,655,280.09
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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.