Finding the Fourth Proportional to 457,601.80, 686,402.70 and 307,913.80
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Solution
The fourth proportional to 457,601.80, 686,402.70 and 307,913.80 is: 461,870.70
Step by Step Solution
- Step 1: Write the proportion equation
457,601.80 : 686,402.70 = 307,913.80 : x - Step 2: Convert to fraction form
457,601.80/686,402.70 = 307,913.80/x - Step 3: Cross multiply
457,601.80x = 686,402.70 × 307,913.80 - Step 4: Simplify right side
457,601.80x = 211,352,863,687.26 - Step 5: Solve for x
x = 211,352,863,687.26/457,601.80 - Step 6: Final answer
x = 461,870.70
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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.