Finding the Fourth Proportional to 1,260,679.68, 1,739,734.34 and 687,715.75
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Solution
The fourth proportional to 1,260,679.68, 1,739,734.34 and 687,715.75 is: 949,045.76
Step by Step Solution
- Step 1: Write the proportion equation
1,260,679.68 : 1,739,734.34 = 687,715.75 : x - Step 2: Convert to fraction form
1,260,679.68/1,739,734.34 = 687,715.75/x - Step 3: Cross multiply
1,260,679.68x = 1,739,734.34 × 687,715.75 - Step 4: Simplify right side
1,260,679.68x = 1,196,442,705,169.94 - Step 5: Solve for x
x = 1,196,442,705,169.94/1,260,679.68 - Step 6: Final answer
x = 949,045.76
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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.