Finding the Fourth Proportional to 1,103,680.35, 1,523,070.90 and 620,235.09
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Solution
The fourth proportional to 1,103,680.35, 1,523,070.90 and 620,235.09 is: 855,919.94
Step by Step Solution
- Step 1: Write the proportion equation
1,103,680.35 : 1,523,070.90 = 620,235.09 : x - Step 2: Convert to fraction form
1,103,680.35/1,523,070.90 = 620,235.09/x - Step 3: Cross multiply
1,103,680.35x = 1,523,070.90 × 620,235.09 - Step 4: Simplify right side
1,103,680.35x = 944,662,016,737.88 - Step 5: Solve for x
x = 944,662,016,737.88/1,103,680.35 - Step 6: Final answer
x = 855,919.94
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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.