Finding the Fourth Proportional to 411,548.40, 617,327.78 and 145,122.09
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Solution
The fourth proportional to 411,548.40, 617,327.78 and 145,122.09 is: 217,684.96
Step by Step Solution
- Step 1: Write the proportion equation
411,548.40 : 617,327.78 = 145,122.09 : x - Step 2: Convert to fraction form
411,548.40/617,327.78 = 145,122.09/x - Step 3: Cross multiply
411,548.40x = 617,327.78 × 145,122.09 - Step 4: Simplify right side
411,548.40x = 89,587,897,648.66 - Step 5: Solve for x
x = 89,587,897,648.66/411,548.40 - Step 6: Final answer
x = 217,684.96
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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.