Finding the Fourth Proportional to 786,235.48, 1,179,125.16 and 306,356.24
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Solution
The fourth proportional to 786,235.48, 1,179,125.16 and 306,356.24 is: 459,445.50
Step by Step Solution
- Step 1: Write the proportion equation
786,235.48 : 1,179,125.16 = 306,356.24 : x - Step 2: Convert to fraction form
786,235.48/1,179,125.16 = 306,356.24/x - Step 3: Cross multiply
786,235.48x = 1,179,125.16 × 306,356.24 - Step 4: Simplify right side
786,235.48x = 361,232,350,507.00 - Step 5: Solve for x
x = 361,232,350,507.00/786,235.48 - Step 6: Final answer
x = 459,445.50
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1.5x scale
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.