Finding the Fourth Proportional to 2,420,472.57, 3,340,260.05 and 1,317,917.03
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Solution
The fourth proportional to 2,420,472.57, 3,340,260.05 and 1,317,917.03 is: 1,818,729.80
Step by Step Solution
- Step 1: Write the proportion equation
2,420,472.57 : 3,340,260.05 = 1,317,917.03 : x - Step 2: Convert to fraction form
2,420,472.57/3,340,260.05 = 1,317,917.03/x - Step 3: Cross multiply
2,420,472.57x = 3,340,260.05 × 1,317,917.03 - Step 4: Simplify right side
2,420,472.57x = 4,402,185,581,232.77 - Step 5: Solve for x
x = 4,402,185,581,232.77/2,420,472.57 - Step 6: Final answer
x = 1,818,729.80
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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.