Finding the Fourth Proportional to 1,278,953.99, 1,764,894.50 and 727,617.79
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Solution
The fourth proportional to 1,278,953.99, 1,764,894.50 and 727,617.79 is: 1,004,077.26
Step by Step Solution
- Step 1: Write the proportion equation
1,278,953.99 : 1,764,894.50 = 727,617.79 : x - Step 2: Convert to fraction form
1,278,953.99/1,764,894.50 = 727,617.79/x - Step 3: Cross multiply
1,278,953.99x = 1,764,894.50 × 727,617.79 - Step 4: Simplify right side
1,278,953.99x = 1,284,168,624,995.79 - Step 5: Solve for x
x = 1,284,168,624,995.79/1,278,953.99 - Step 6: Final answer
x = 1,004,077.26
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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.