Finding the Fourth Proportional to 1,259,539.10, 1,738,149.81 and 686,566.70
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Solution
The fourth proportional to 1,259,539.10, 1,738,149.81 and 686,566.70 is: 947,454.33
Step by Step Solution
- Step 1: Write the proportion equation
1,259,539.10 : 1,738,149.81 = 686,566.70 : x - Step 2: Convert to fraction form
1,259,539.10/1,738,149.81 = 686,566.70/x - Step 3: Cross multiply
1,259,539.10x = 1,738,149.81 × 686,566.70 - Step 4: Simplify right side
1,259,539.10x = 1,193,355,779,157.33 - Step 5: Solve for x
x = 1,193,355,779,157.33/1,259,539.10 - Step 6: Final answer
x = 947,454.33
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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.