Finding the Fourth Proportional to 1,560,021.60, 2,153,830.32 and 1,274,227.68
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Solution
The fourth proportional to 1,560,021.60, 2,153,830.32 and 1,274,227.68 is: 1,759,251.42
Step by Step Solution
- Step 1: Write the proportion equation
1,560,021.60 : 2,153,830.32 = 1,274,227.68 : x - Step 2: Convert to fraction form
1,560,021.60/2,153,830.32 = 1,274,227.68/x - Step 3: Cross multiply
1,560,021.60x = 2,153,830.32 × 1,274,227.68 - Step 4: Simplify right side
1,560,021.60x = 2,744,470,211,767.26 - Step 5: Solve for x
x = 2,744,470,211,767.26/1,560,021.60 - Step 6: Final answer
x = 1,759,251.42
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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.