Finding the Fourth Proportional to 1,646,944.70, 2,272,265.60 and 921,677.18
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Solution
The fourth proportional to 1,646,944.70, 2,272,265.60 and 921,677.18 is: 1,271,624.57
Step by Step Solution
- Step 1: Write the proportion equation
1,646,944.70 : 2,272,265.60 = 921,677.18 : x - Step 2: Convert to fraction form
1,646,944.70/2,272,265.60 = 921,677.18/x - Step 3: Cross multiply
1,646,944.70x = 2,272,265.60 × 921,677.18 - Step 4: Simplify right side
1,646,944.70x = 2,094,295,334,449.29 - Step 5: Solve for x
x = 2,094,295,334,449.29/1,646,944.70 - Step 6: Final answer
x = 1,271,624.57
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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.