Finding the Fourth Proportional to 1,438,610.84, 2,157,915.65 and 427,728.41
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Solution
The fourth proportional to 1,438,610.84, 2,157,915.65 and 427,728.41 is: 641,592.43
Step by Step Solution
- Step 1: Write the proportion equation
1,438,610.84 : 2,157,915.65 = 427,728.41 : x - Step 2: Convert to fraction form
1,438,610.84/2,157,915.65 = 427,728.41/x - Step 3: Cross multiply
1,438,610.84x = 2,157,915.65 × 427,728.41 - Step 4: Simplify right side
1,438,610.84x = 923,001,816,960.40 - Step 5: Solve for x
x = 923,001,816,960.40/1,438,610.84 - Step 6: Final answer
x = 641,592.43
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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.