Finding the Fourth Proportional to 1,325,520, 1,986,426.63 and 716,994.68
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Solution
The fourth proportional to 1,325,520, 1,986,426.63 and 716,994.68 is: 1,074,489.50
Step by Step Solution
- Step 1: Write the proportion equation
1,325,520 : 1,986,426.63 = 716,994.68 : x - Step 2: Convert to fraction form
1,325,520/1,986,426.63 = 716,994.68/x - Step 3: Cross multiply
1,325,520x = 1,986,426.63 × 716,994.68 - Step 4: Simplify right side
1,325,520x = 1,424,257,315,988.20 - Step 5: Solve for x
x = 1,424,257,315,988.20/1,325,520 - Step 6: Final answer
x = 1,074,489.50
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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.