Finding the Fourth Proportional to 1,103,685.62, 1,522,137.69 and 716,119.13
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Solution
The fourth proportional to 1,103,685.62, 1,522,137.69 and 716,119.13 is: 987,628.99
Step by Step Solution
- Step 1: Write the proportion equation
1,103,685.62 : 1,522,137.69 = 716,119.13 : x - Step 2: Convert to fraction form
1,103,685.62/1,522,137.69 = 716,119.13/x - Step 3: Cross multiply
1,103,685.62x = 1,522,137.69 × 716,119.13 - Step 4: Simplify right side
1,103,685.62x = 1,090,031,910,692.32 - Step 5: Solve for x
x = 1,090,031,910,692.32/1,103,685.62 - Step 6: Final answer
x = 987,628.99
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1.5x scale
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.