Finding the Fourth Proportional to 813,764.40, 1,217,190.60 and 730,129.20
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Solution
The fourth proportional to 813,764.40, 1,217,190.60 and 730,129.20 is: 1,092,092.99
Step by Step Solution
- Step 1: Write the proportion equation
813,764.40 : 1,217,190.60 = 730,129.20 : x - Step 2: Convert to fraction form
813,764.40/1,217,190.60 = 730,129.20/x - Step 3: Cross multiply
813,764.40x = 1,217,190.60 × 730,129.20 - Step 4: Simplify right side
813,764.40x = 888,706,399,025.52 - Step 5: Solve for x
x = 888,706,399,025.52/813,764.40 - Step 6: Final answer
x = 1,092,092.99
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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.