Finding the Fourth Proportional to 526,728.84, 726,880.32 and 285,006.09
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Solution
The fourth proportional to 526,728.84, 726,880.32 and 285,006.09 is: 393,305.44
Step by Step Solution
- Step 1: Write the proportion equation
526,728.84 : 726,880.32 = 285,006.09 : x - Step 2: Convert to fraction form
526,728.84/726,880.32 = 285,006.09/x - Step 3: Cross multiply
526,728.84x = 726,880.32 × 285,006.09 - Step 4: Simplify right side
526,728.84x = 207,165,317,901.15 - Step 5: Solve for x
x = 207,165,317,901.15/526,728.84 - Step 6: Final answer
x = 393,305.44
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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.