Finding the Fourth Proportional to 412,878.12, 569,561.76 and 269,721.96
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Solution
The fourth proportional to 412,878.12, 569,561.76 and 269,721.96 is: 372,079.09
Step by Step Solution
- Step 1: Write the proportion equation
412,878.12 : 569,561.76 = 269,721.96 : x - Step 2: Convert to fraction form
412,878.12/569,561.76 = 269,721.96/x - Step 3: Cross multiply
412,878.12x = 569,561.76 × 269,721.96 - Step 4: Simplify right side
412,878.12x = 153,623,314,248.25 - Step 5: Solve for x
x = 153,623,314,248.25/412,878.12 - Step 6: Final answer
x = 372,079.09
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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.