Finding the Fourth Proportional to 409,433.20, 614,149.80 and 374,003.80
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Solution
The fourth proportional to 409,433.20, 614,149.80 and 374,003.80 is: 561,005.70
Step by Step Solution
- Step 1: Write the proportion equation
409,433.20 : 614,149.80 = 374,003.80 : x - Step 2: Convert to fraction form
409,433.20/614,149.80 = 374,003.80/x - Step 3: Cross multiply
409,433.20x = 614,149.80 × 374,003.80 - Step 4: Simplify right side
409,433.20x = 229,694,358,969.24 - Step 5: Solve for x
x = 229,694,358,969.24/409,433.20 - Step 6: Final answer
x = 561,005.70
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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.