Finding the Fourth Proportional to 845,471.20, 1,268,206.80 and 284,447.20
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Solution
The fourth proportional to 845,471.20, 1,268,206.80 and 284,447.20 is: 426,670.80
Step by Step Solution
- Step 1: Write the proportion equation
845,471.20 : 1,268,206.80 = 284,447.20 : x - Step 2: Convert to fraction form
845,471.20/1,268,206.80 = 284,447.20/x - Step 3: Cross multiply
845,471.20x = 1,268,206.80 × 284,447.20 - Step 4: Simplify right side
845,471.20x = 360,737,873,280.96 - Step 5: Solve for x
x = 360,737,873,280.96/845,471.20 - Step 6: Final answer
x = 426,670.80
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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.