Finding the Fourth Proportional to 520,760.28, 718,639.68 and 294,405.84
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Solution
The fourth proportional to 520,760.28, 718,639.68 and 294,405.84 is: 406,274.68
Step by Step Solution
- Step 1: Write the proportion equation
520,760.28 : 718,639.68 = 294,405.84 : x - Step 2: Convert to fraction form
520,760.28/718,639.68 = 294,405.84/x - Step 3: Cross multiply
520,760.28x = 718,639.68 × 294,405.84 - Step 4: Simplify right side
520,760.28x = 211,571,718,647.73 - Step 5: Solve for x
x = 211,571,718,647.73/520,760.28 - Step 6: Final answer
x = 406,274.68
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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.