Finding the Fourth Proportional to 1,321,197.48, 1,823,242.50 and 717,589.80
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Solution
The fourth proportional to 1,321,197.48, 1,823,242.50 and 717,589.80 is: 990,268.48
Step by Step Solution
- Step 1: Write the proportion equation
1,321,197.48 : 1,823,242.50 = 717,589.80 : x - Step 2: Convert to fraction form
1,321,197.48/1,823,242.50 = 717,589.80/x - Step 3: Cross multiply
1,321,197.48x = 1,823,242.50 × 717,589.80 - Step 4: Simplify right side
1,321,197.48x = 1,308,340,220,926.50 - Step 5: Solve for x
x = 1,308,340,220,926.50/1,321,197.48 - Step 6: Final answer
x = 990,268.48
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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.