Finding the Fourth Proportional to 633,721.04, 874,451.88 and 378,979.28
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Solution
The fourth proportional to 633,721.04, 874,451.88 and 378,979.28 is: 522,941.68
Step by Step Solution
- Step 1: Write the proportion equation
633,721.04 : 874,451.88 = 378,979.28 : x - Step 2: Convert to fraction form
633,721.04/874,451.88 = 378,979.28/x - Step 3: Cross multiply
633,721.04x = 874,451.88 × 378,979.28 - Step 4: Simplify right side
633,721.04x = 331,399,143,877.05 - Step 5: Solve for x
x = 331,399,143,877.05/633,721.04 - Step 6: Final answer
x = 522,941.68
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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.