Finding the Fourth Proportional to 1,103,674.16, 1,523,205.60 and 620,259.68
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Solution
The fourth proportional to 1,103,674.16, 1,523,205.60 and 620,259.68 is: 856,034.37
Step by Step Solution
- Step 1: Write the proportion equation
1,103,674.16 : 1,523,205.60 = 620,259.68 : x - Step 2: Convert to fraction form
1,103,674.16/1,523,205.60 = 620,259.68/x - Step 3: Cross multiply
1,103,674.16x = 1,523,205.60 × 620,259.68 - Step 4: Simplify right side
1,103,674.16x = 944,783,018,030.21 - Step 5: Solve for x
x = 944,783,018,030.21/1,103,674.16 - Step 6: Final answer
x = 856,034.37
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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.