Finding the Fourth Proportional to 633,984.08, 874,987.74 and 392,344.47
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Solution
The fourth proportional to 633,984.08, 874,987.74 and 392,344.47 is: 541,490.89
Step by Step Solution
- Step 1: Write the proportion equation
633,984.08 : 874,987.74 = 392,344.47 : x - Step 2: Convert to fraction form
633,984.08/874,987.74 = 392,344.47/x - Step 3: Cross multiply
633,984.08x = 874,987.74 × 392,344.47 - Step 4: Simplify right side
633,984.08x = 343,296,601,106.80 - Step 5: Solve for x
x = 343,296,601,106.80/633,984.08 - Step 6: Final answer
x = 541,490.89
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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.