Finding the Fourth Proportional to 869,101.40, 1,303,652.10 and 785,120.60
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Solution
The fourth proportional to 869,101.40, 1,303,652.10 and 785,120.60 is: 1,177,680.90
Step by Step Solution
- Step 1: Write the proportion equation
869,101.40 : 1,303,652.10 = 785,120.60 : x - Step 2: Convert to fraction form
869,101.40/1,303,652.10 = 785,120.60/x - Step 3: Cross multiply
869,101.40x = 1,303,652.10 × 785,120.60 - Step 4: Simplify right side
869,101.40x = 1,023,524,118,943.26 - Step 5: Solve for x
x = 1,023,524,118,943.26/869,101.40 - Step 6: Final answer
x = 1,177,680.90
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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.