Finding the Fourth Proportional to 1,508,377.94, 2,081,543.21 and 1,122,915.54
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Solution
The fourth proportional to 1,508,377.94, 2,081,543.21 and 1,122,915.54 is: 1,549,609.79
Step by Step Solution
- Step 1: Write the proportion equation
1,508,377.94 : 2,081,543.21 = 1,122,915.54 : x - Step 2: Convert to fraction form
1,508,377.94/2,081,543.21 = 1,122,915.54/x - Step 3: Cross multiply
1,508,377.94x = 2,081,543.21 × 1,122,915.54 - Step 4: Simplify right side
1,508,377.94x = 2,337,397,217,690.48 - Step 5: Solve for x
x = 2,337,397,217,690.48/1,508,377.94 - Step 6: Final answer
x = 1,549,609.79
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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.