Finding the Fourth Proportional to 416,406.87, 574,641.36 and 225,420.12
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Solution
The fourth proportional to 416,406.87, 574,641.36 and 225,420.12 is: 311,079.70
Step by Step Solution
- Step 1: Write the proportion equation
416,406.87 : 574,641.36 = 225,420.12 : x - Step 2: Convert to fraction form
416,406.87/574,641.36 = 225,420.12/x - Step 3: Cross multiply
416,406.87x = 574,641.36 × 225,420.12 - Step 4: Simplify right side
416,406.87x = 129,535,724,328.16 - Step 5: Solve for x
x = 129,535,724,328.16/416,406.87 - Step 6: Final answer
x = 311,079.70
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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.