Finding the Fourth Proportional to 505,875.36, 698,122.08 and 279,535.44
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Solution
The fourth proportional to 505,875.36, 698,122.08 and 279,535.44 is: 385,766.69
Step by Step Solution
- Step 1: Write the proportion equation
505,875.36 : 698,122.08 = 279,535.44 : x - Step 2: Convert to fraction form
505,875.36/698,122.08 = 279,535.44/x - Step 3: Cross multiply
505,875.36x = 698,122.08 × 279,535.44 - Step 4: Simplify right side
505,875.36x = 195,149,862,806.52 - Step 5: Solve for x
x = 195,149,862,806.52/505,875.36 - Step 6: Final answer
x = 385,766.69
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1.5x scale
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.