Finding the Fourth Proportional to 772,245.81, 1,064,517.89 and 542,157.62
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Solution
The fourth proportional to 772,245.81, 1,064,517.89 and 542,157.62 is: 747,348.15
Step by Step Solution
- Step 1: Write the proportion equation
772,245.81 : 1,064,517.89 = 542,157.62 : x - Step 2: Convert to fraction form
772,245.81/1,064,517.89 = 542,157.62/x - Step 3: Cross multiply
772,245.81x = 1,064,517.89 × 542,157.62 - Step 4: Simplify right side
772,245.81x = 577,136,477,656.44 - Step 5: Solve for x
x = 577,136,477,656.44/772,245.81 - Step 6: Final answer
x = 747,348.15
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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.