Finding the Fourth Proportional to 1,243,312.80, 1,861,858.80 and 994,480.80
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Solution
The fourth proportional to 1,243,312.80, 1,861,858.80 and 994,480.80 is: 1,489,233.30
Step by Step Solution
- Step 1: Write the proportion equation
1,243,312.80 : 1,861,858.80 = 994,480.80 : x - Step 2: Convert to fraction form
1,243,312.80/1,861,858.80 = 994,480.80/x - Step 3: Cross multiply
1,243,312.80x = 1,861,858.80 × 994,480.80 - Step 4: Simplify right side
1,243,312.80x = 1,851,582,828,911.04 - Step 5: Solve for x
x = 1,851,582,828,911.04/1,243,312.80 - Step 6: Final answer
x = 1,489,233.30
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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.