Finding the Fourth Proportional to 762,129.60, 1,051,737.12 and 422,589.12
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Solution
The fourth proportional to 762,129.60, 1,051,737.12 and 422,589.12 is: 583,172.03
Step by Step Solution
- Step 1: Write the proportion equation
762,129.60 : 1,051,737.12 = 422,589.12 : x - Step 2: Convert to fraction form
762,129.60/1,051,737.12 = 422,589.12/x - Step 3: Cross multiply
762,129.60x = 1,051,737.12 × 422,589.12 - Step 4: Simplify right side
762,129.60x = 444,452,664,012.13 - Step 5: Solve for x
x = 444,452,664,012.13/762,129.60 - Step 6: Final answer
x = 583,172.03
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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.