Finding the Fourth Proportional to 1,664,863.80, 2,497,295.70 and 1,478,859.45
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Solution
The fourth proportional to 1,664,863.80, 2,497,295.70 and 1,478,859.45 is: 2,218,289.18
Step by Step Solution
- Step 1: Write the proportion equation
1,664,863.80 : 2,497,295.70 = 1,478,859.45 : x - Step 2: Convert to fraction form
1,664,863.80/2,497,295.70 = 1,478,859.45/x - Step 3: Cross multiply
1,664,863.80x = 2,497,295.70 × 1,478,859.45 - Step 4: Simplify right side
1,664,863.80x = 3,693,149,345,389.37 - Step 5: Solve for x
x = 3,693,149,345,389.37/1,664,863.80 - Step 6: Final answer
x = 2,218,289.18
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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.