Finding the Fourth Proportional to 457,478.62, 686,212.93 and 187,546.53
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Solution
The fourth proportional to 457,478.62, 686,212.93 and 187,546.53 is: 281,317.75
Step by Step Solution
- Step 1: Write the proportion equation
457,478.62 : 686,212.93 = 187,546.53 : x - Step 2: Convert to fraction form
457,478.62/686,212.93 = 187,546.53/x - Step 3: Cross multiply
457,478.62x = 686,212.93 × 187,546.53 - Step 4: Simplify right side
457,478.62x = 128,696,853,862.63 - Step 5: Solve for x
x = 128,696,853,862.63/457,478.62 - Step 6: Final answer
x = 281,317.75
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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.