Finding the Fourth Proportional to 1,130,629.20, 1,695,409.20 and 657,459.60
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Solution
The fourth proportional to 1,130,629.20, 1,695,409.20 and 657,459.60 is: 985,878.53
Step by Step Solution
- Step 1: Write the proportion equation
1,130,629.20 : 1,695,409.20 = 657,459.60 : x - Step 2: Convert to fraction form
1,130,629.20/1,695,409.20 = 657,459.60/x - Step 3: Cross multiply
1,130,629.20x = 1,695,409.20 × 657,459.60 - Step 4: Simplify right side
1,130,629.20x = 1,114,663,054,468.32 - Step 5: Solve for x
x = 1,114,663,054,468.32/1,130,629.20 - Step 6: Final answer
x = 985,878.53
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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.