Finding the Fourth Proportional to 391,946.85, 587,918.99 and 107,637.66
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Solution
The fourth proportional to 391,946.85, 587,918.99 and 107,637.66 is: 161,456.14
Step by Step Solution
- Step 1: Write the proportion equation
391,946.85 : 587,918.99 = 107,637.66 : x - Step 2: Convert to fraction form
391,946.85/587,918.99 = 107,637.66/x - Step 3: Cross multiply
391,946.85x = 587,918.99 × 107,637.66 - Step 4: Simplify right side
391,946.85x = 63,282,224,622.26 - Step 5: Solve for x
x = 63,282,224,622.26/391,946.85 - Step 6: Final answer
x = 161,456.14
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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.