Finding the Fourth Proportional to 320,450.18, 478,584.86 and 272,554.88
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Solution
The fourth proportional to 320,450.18, 478,584.86 and 272,554.88 is: 407,054.34
Step by Step Solution
- Step 1: Write the proportion equation
320,450.18 : 478,584.86 = 272,554.88 : x - Step 2: Convert to fraction form
320,450.18/478,584.86 = 272,554.88/x - Step 3: Cross multiply
320,450.18x = 478,584.86 × 272,554.88 - Step 4: Simplify right side
320,450.18x = 130,440,635,331.42 - Step 5: Solve for x
x = 130,440,635,331.42/320,450.18 - Step 6: Final answer
x = 407,054.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.