Finding the Fourth Proportional to 1,112,318.39, 1,668,973.84 and 512,957.81
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Solution
The fourth proportional to 1,112,318.39, 1,668,973.84 and 512,957.81 is: 769,665.56
Step by Step Solution
- Step 1: Write the proportion equation
1,112,318.39 : 1,668,973.84 = 512,957.81 : x - Step 2: Convert to fraction form
1,112,318.39/1,668,973.84 = 512,957.81/x - Step 3: Cross multiply
1,112,318.39x = 1,668,973.84 × 512,957.81 - Step 4: Simplify right side
1,112,318.39x = 856,113,156,286.43 - Step 5: Solve for x
x = 856,113,156,286.43/1,112,318.39 - Step 6: Final answer
x = 769,665.56
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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.