Finding the Fourth Proportional to 916,220.52, 1,374,418.23 and 284,964.84
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Solution
The fourth proportional to 916,220.52, 1,374,418.23 and 284,964.84 is: 427,474.46
Step by Step Solution
- Step 1: Write the proportion equation
916,220.52 : 1,374,418.23 = 284,964.84 : x - Step 2: Convert to fraction form
916,220.52/1,374,418.23 = 284,964.84/x - Step 3: Cross multiply
916,220.52x = 1,374,418.23 × 284,964.84 - Step 4: Simplify right side
916,220.52x = 391,660,871,005.03 - Step 5: Solve for x
x = 391,660,871,005.03/916,220.52 - Step 6: Final answer
x = 427,474.46
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1.5x scale
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.