Finding the Fourth Proportional to 2,166,284.76, 2,989,566.36 and 1,199,415.02
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Solution
The fourth proportional to 2,166,284.76, 2,989,566.36 and 1,199,415.02 is: 1,655,244.43
Step by Step Solution
- Step 1: Write the proportion equation
2,166,284.76 : 2,989,566.36 = 1,199,415.02 : x - Step 2: Convert to fraction form
2,166,284.76/2,989,566.36 = 1,199,415.02/x - Step 3: Cross multiply
2,166,284.76x = 2,989,566.36 × 1,199,415.02 - Step 4: Simplify right side
2,166,284.76x = 3,585,730,780,522.90 - Step 5: Solve for x
x = 3,585,730,780,522.90/2,166,284.76 - Step 6: Final answer
x = 1,655,244.43
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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.