Finding the Fourth Proportional to 1,170,516.63, 1,615,444.23 and 661,251.81
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Solution
The fourth proportional to 1,170,516.63, 1,615,444.23 and 661,251.81 is: 912,601.66
Step by Step Solution
- Step 1: Write the proportion equation
1,170,516.63 : 1,615,444.23 = 661,251.81 : x - Step 2: Convert to fraction form
1,170,516.63/1,615,444.23 = 661,251.81/x - Step 3: Cross multiply
1,170,516.63x = 1,615,444.23 × 661,251.81 - Step 4: Simplify right side
1,170,516.63x = 1,068,215,421,041.56 - Step 5: Solve for x
x = 1,068,215,421,041.56/1,170,516.63 - Step 6: Final answer
x = 912,601.66
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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.