Finding the Fourth Proportional to 920,787.37, 1,270,621.26 and 507,306.09
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Solution
The fourth proportional to 920,787.37, 1,270,621.26 and 507,306.09 is: 700,046.42
Step by Step Solution
- Step 1: Write the proportion equation
920,787.37 : 1,270,621.26 = 507,306.09 : x - Step 2: Convert to fraction form
920,787.37/1,270,621.26 = 507,306.09/x - Step 3: Cross multiply
920,787.37x = 1,270,621.26 × 507,306.09 - Step 4: Simplify right side
920,787.37x = 644,593,899,472.26 - Step 5: Solve for x
x = 644,593,899,472.26/920,787.37 - Step 6: Final answer
x = 700,046.42
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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.