Finding the Fourth Proportional to 457,409.95, 686,062.99 and 120,476.96
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Solution
The fourth proportional to 457,409.95, 686,062.99 and 120,476.96 is: 180,701.76
Step by Step Solution
- Step 1: Write the proportion equation
457,409.95 : 686,062.99 = 120,476.96 : x - Step 2: Convert to fraction form
457,409.95/686,062.99 = 120,476.96/x - Step 3: Cross multiply
457,409.95x = 686,062.99 × 120,476.96 - Step 4: Simplify right side
457,409.95x = 82,654,784,817.68 - Step 5: Solve for x
x = 82,654,784,817.68/457,409.95 - Step 6: Final answer
x = 180,701.76
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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.