Finding the Fourth Proportional to 1,563,770.92, 2,156,891.20 and 1,435,124.92
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Solution
The fourth proportional to 1,563,770.92, 2,156,891.20 and 1,435,124.92 is: 1,979,451.26
Step by Step Solution
- Step 1: Write the proportion equation
1,563,770.92 : 2,156,891.20 = 1,435,124.92 : x - Step 2: Convert to fraction form
1,563,770.92/2,156,891.20 = 1,435,124.92/x - Step 3: Cross multiply
1,563,770.92x = 2,156,891.20 × 1,435,124.92 - Step 4: Simplify right side
1,563,770.92x = 3,095,408,310,848.70 - Step 5: Solve for x
x = 3,095,408,310,848.70/1,563,770.92 - Step 6: Final answer
x = 1,979,451.26
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1.5x scale
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.