Finding the Fourth Proportional to 772,118.06, 1,157,782.21 and 322,716.29
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Solution
The fourth proportional to 772,118.06, 1,157,782.21 and 322,716.29 is: 483,909.39
Step by Step Solution
- Step 1: Write the proportion equation
772,118.06 : 1,157,782.21 = 322,716.29 : x - Step 2: Convert to fraction form
772,118.06/1,157,782.21 = 322,716.29/x - Step 3: Cross multiply
772,118.06x = 1,157,782.21 × 322,716.29 - Step 4: Simplify right side
772,118.06x = 373,635,179,439.20 - Step 5: Solve for x
x = 373,635,179,439.20/772,118.06 - Step 6: Final answer
x = 483,909.39
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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.