Finding the Fourth Proportional to 2,897,129.60, 4,347,249.60 and 1,214,403.20
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Solution
The fourth proportional to 2,897,129.60, 4,347,249.60 and 1,214,403.20 is: 1,822,256.70
Step by Step Solution
- Step 1: Write the proportion equation
2,897,129.60 : 4,347,249.60 = 1,214,403.20 : x - Step 2: Convert to fraction form
2,897,129.60/4,347,249.60 = 1,214,403.20/x - Step 3: Cross multiply
2,897,129.60x = 4,347,249.60 × 1,214,403.20 - Step 4: Simplify right side
2,897,129.60x = 5,279,313,825,438.72 - Step 5: Solve for x
x = 5,279,313,825,438.72/2,897,129.60 - Step 6: Final answer
x = 1,822,256.70
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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.