Finding the Fourth Proportional to 898,137.70, 1,347,206.55 and 815,193.70
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Solution
The fourth proportional to 898,137.70, 1,347,206.55 and 815,193.70 is: 1,222,790.55
Step by Step Solution
- Step 1: Write the proportion equation
898,137.70 : 1,347,206.55 = 815,193.70 : x - Step 2: Convert to fraction form
898,137.70/1,347,206.55 = 815,193.70/x - Step 3: Cross multiply
898,137.70x = 1,347,206.55 × 815,193.70 - Step 4: Simplify right side
898,137.70x = 1,098,234,292,158.74 - Step 5: Solve for x
x = 1,098,234,292,158.74/898,137.70 - Step 6: Final answer
x = 1,222,790.55
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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.