Finding the Fourth Proportional to 1,264,395.64, 1,744,849.20 and 720,563.80
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Solution
The fourth proportional to 1,264,395.64, 1,744,849.20 and 720,563.80 is: 994,368.48
Step by Step Solution
- Step 1: Write the proportion equation
1,264,395.64 : 1,744,849.20 = 720,563.80 : x - Step 2: Convert to fraction form
1,264,395.64/1,744,849.20 = 720,563.80/x - Step 3: Cross multiply
1,264,395.64x = 1,744,849.20 × 720,563.80 - Step 4: Simplify right side
1,264,395.64x = 1,257,275,169,978.96 - Step 5: Solve for x
x = 1,257,275,169,978.96/1,264,395.64 - Step 6: Final answer
x = 994,368.48
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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.