Finding the Fourth Proportional to 539,643.23, 809,193.74 and 179,686.84
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Solution
The fourth proportional to 539,643.23, 809,193.74 and 179,686.84 is: 269,439.99
Step by Step Solution
- Step 1: Write the proportion equation
539,643.23 : 809,193.74 = 179,686.84 : x - Step 2: Convert to fraction form
539,643.23/809,193.74 = 179,686.84/x - Step 3: Cross multiply
539,643.23x = 809,193.74 × 179,686.84 - Step 4: Simplify right side
539,643.23x = 145,401,464,514.61 - Step 5: Solve for x
x = 145,401,464,514.61/539,643.23 - Step 6: Final answer
x = 269,439.99
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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.