Finding the Fourth Proportional to 863,439.52, 1,295,315.12 and 390,347.68
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Solution
The fourth proportional to 863,439.52, 1,295,315.12 and 390,347.68 is: 585,591.97
Step by Step Solution
- Step 1: Write the proportion equation
863,439.52 : 1,295,315.12 = 390,347.68 : x - Step 2: Convert to fraction form
863,439.52/1,295,315.12 = 390,347.68/x - Step 3: Cross multiply
863,439.52x = 1,295,315.12 × 390,347.68 - Step 4: Simplify right side
863,439.52x = 505,623,251,960.92 - Step 5: Solve for x
x = 505,623,251,960.92/863,439.52 - Step 6: Final answer
x = 585,591.97
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.