Finding the Fourth Proportional to 2,219,691.60, 3,331,092.60 and 1,422,910.80
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Solution
The fourth proportional to 2,219,691.60, 3,331,092.60 and 1,422,910.80 is: 2,135,363.15
Step by Step Solution
- Step 1: Write the proportion equation
2,219,691.60 : 3,331,092.60 = 1,422,910.80 : x - Step 2: Convert to fraction form
2,219,691.60/3,331,092.60 = 1,422,910.80/x - Step 3: Cross multiply
2,219,691.60x = 3,331,092.60 × 1,422,910.80 - Step 4: Simplify right side
2,219,691.60x = 4,739,847,636,340.08 - Step 5: Solve for x
x = 4,739,847,636,340.08/2,219,691.60 - Step 6: Final answer
x = 2,135,363.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.