Finding the Fourth Proportional to 409,213.70, 613,820.55 and 409,213.70
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Solution
The fourth proportional to 409,213.70, 613,820.55 and 409,213.70 is: 613,820.55
Step by Step Solution
- Step 1: Write the proportion equation
409,213.70 : 613,820.55 = 409,213.70 : x - Step 2: Convert to fraction form
409,213.70/613,820.55 = 409,213.70/x - Step 3: Cross multiply
409,213.70x = 613,820.55 × 409,213.70 - Step 4: Simplify right side
409,213.70x = 251,183,778,401.54 - Step 5: Solve for x
x = 251,183,778,401.54/409,213.70 - Step 6: Final answer
x = 613,820.55
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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.