Finding the Fourth Proportional to 2,166,267.58, 2,989,542.68 and 1,199,397.88
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Solution
The fourth proportional to 2,166,267.58, 2,989,542.68 and 1,199,397.88 is: 1,655,220.80
Step by Step Solution
- Step 1: Write the proportion equation
2,166,267.58 : 2,989,542.68 = 1,199,397.88 : x - Step 2: Convert to fraction form
2,166,267.58/2,989,542.68 = 1,199,397.88/x - Step 3: Cross multiply
2,166,267.58x = 2,989,542.68 × 1,199,397.88 - Step 4: Simplify right side
2,166,267.58x = 3,585,651,154,799.20 - Step 5: Solve for x
x = 3,585,651,154,799.20/2,166,267.58 - Step 6: Final answer
x = 1,655,220.80
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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.