Finding the Fourth Proportional to 447,915.15, 618,122.79 and 246,711.15
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Solution
The fourth proportional to 447,915.15, 618,122.79 and 246,711.15 is: 340,461.32
Step by Step Solution
- Step 1: Write the proportion equation
447,915.15 : 618,122.79 = 246,711.15 : x - Step 2: Convert to fraction form
447,915.15/618,122.79 = 246,711.15/x - Step 3: Cross multiply
447,915.15x = 618,122.79 × 246,711.15 - Step 4: Simplify right side
447,915.15x = 152,497,784,362.11 - Step 5: Solve for x
x = 152,497,784,362.11/447,915.15 - Step 6: Final answer
x = 340,461.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.