Finding the Fourth Proportional to 1,264,420.34, 1,744,930.37 and 720,544.50
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Solution
The fourth proportional to 1,264,420.34, 1,744,930.37 and 720,544.50 is: 994,368.68
Step by Step Solution
- Step 1: Write the proportion equation
1,264,420.34 : 1,744,930.37 = 720,544.50 : x - Step 2: Convert to fraction form
1,264,420.34/1,744,930.37 = 720,544.50/x - Step 3: Cross multiply
1,264,420.34x = 1,744,930.37 × 720,544.50 - Step 4: Simplify right side
1,264,420.34x = 1,257,299,980,986.47 - Step 5: Solve for x
x = 1,257,299,980,986.47/1,264,420.34 - Step 6: Final answer
x = 994,368.68
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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.