Finding the Fourth Proportional to 409,722.60, 614,972.70 and 252,258.60
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Solution
The fourth proportional to 409,722.60, 614,972.70 and 252,258.60 is: 378,627.28
Step by Step Solution
- Step 1: Write the proportion equation
409,722.60 : 614,972.70 = 252,258.60 : x - Step 2: Convert to fraction form
409,722.60/614,972.70 = 252,258.60/x - Step 3: Cross multiply
409,722.60x = 614,972.70 × 252,258.60 - Step 4: Simplify right side
409,722.60x = 155,132,152,340.22 - Step 5: Solve for x
x = 155,132,152,340.22/409,722.60 - Step 6: Final answer
x = 378,627.28
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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.