Finding the Fourth Proportional to 1,199,863.56, 1,655,812.62 and 655,990.68
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Solution
The fourth proportional to 1,199,863.56, 1,655,812.62 and 655,990.68 is: 905,267.63
Step by Step Solution
- Step 1: Write the proportion equation
1,199,863.56 : 1,655,812.62 = 655,990.68 : x - Step 2: Convert to fraction form
1,199,863.56/1,655,812.62 = 655,990.68/x - Step 3: Cross multiply
1,199,863.56x = 1,655,812.62 × 655,990.68 - Step 4: Simplify right side
1,199,863.56x = 1,086,197,646,546.38 - Step 5: Solve for x
x = 1,086,197,646,546.38/1,199,863.56 - Step 6: Final answer
x = 905,267.63
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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.