Finding the Fourth Proportional to 1,107,135.78, 1,527,852.85 and 623,708.54
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Solution
The fourth proportional to 1,107,135.78, 1,527,852.85 and 623,708.54 is: 860,720.87
Step by Step Solution
- Step 1: Write the proportion equation
1,107,135.78 : 1,527,852.85 = 623,708.54 : x - Step 2: Convert to fraction form
1,107,135.78/1,527,852.85 = 623,708.54/x - Step 3: Cross multiply
1,107,135.78x = 1,527,852.85 × 623,708.54 - Step 4: Simplify right side
1,107,135.78x = 952,934,866,939.25 - Step 5: Solve for x
x = 952,934,866,939.25/1,107,135.78 - Step 6: Final answer
x = 860,720.87
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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.