Finding the Fourth Proportional to 526,541.78, 726,396.81 and 308,639.99
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Solution
The fourth proportional to 526,541.78, 726,396.81 and 308,639.99 is: 425,787.87
Step by Step Solution
- Step 1: Write the proportion equation
526,541.78 : 726,396.81 = 308,639.99 : x - Step 2: Convert to fraction form
526,541.78/726,396.81 = 308,639.99/x - Step 3: Cross multiply
526,541.78x = 726,396.81 × 308,639.99 - Step 4: Simplify right side
526,541.78x = 224,195,100,542.45 - Step 5: Solve for x
x = 224,195,100,542.45/526,541.78 - Step 6: Final answer
x = 425,787.87
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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.