Finding the Fourth Proportional to 919,945.68, 1,269,515.34 and 512,041.02
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Solution
The fourth proportional to 919,945.68, 1,269,515.34 and 512,041.02 is: 706,611.21
Step by Step Solution
- Step 1: Write the proportion equation
919,945.68 : 1,269,515.34 = 512,041.02 : x - Step 2: Convert to fraction form
919,945.68/1,269,515.34 = 512,041.02/x - Step 3: Cross multiply
919,945.68x = 1,269,515.34 × 512,041.02 - Step 4: Simplify right side
919,945.68x = 650,043,929,599.25 - Step 5: Solve for x
x = 650,043,929,599.25/919,945.68 - Step 6: Final answer
x = 706,611.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.