Finding the Fourth Proportional to 1,124.52, 1,687.04 and 355
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Solution
The fourth proportional to 1,124.52, 1,687.04 and 355 is: 532.58
Step by Step Solution
- Step 1: Write the proportion equation
1,124.52 : 1,687.04 = 355 : x - Step 2: Convert to fraction form
1,124.52/1,687.04 = 355/x - Step 3: Cross multiply
1,124.52x = 1,687.04 × 355 - Step 4: Simplify right side
1,124.52x = 598,899.20 - Step 5: Solve for x
x = 598,899.20/1,124.52 - Step 6: Final answer
x = 532.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.