Finding the Fourth Proportional to 1,432,106.19, 1,976,255.42 and 787,520.75
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Solution
The fourth proportional to 1,432,106.19, 1,976,255.42 and 787,520.75 is: 1,086,750.51
Step by Step Solution
- Step 1: Write the proportion equation
1,432,106.19 : 1,976,255.42 = 787,520.75 : x - Step 2: Convert to fraction form
1,432,106.19/1,976,255.42 = 787,520.75/x - Step 3: Cross multiply
1,432,106.19x = 1,976,255.42 × 787,520.75 - Step 4: Simplify right side
1,432,106.19x = 1,556,342,136,731.08 - Step 5: Solve for x
x = 1,556,342,136,731.08/1,432,106.19 - Step 6: Final answer
x = 1,086,750.51
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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.