Finding the Fourth Proportional to 1,087,778.42, 1,631,106.84 and 488,225.60
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Solution
The fourth proportional to 1,087,778.42, 1,631,106.84 and 488,225.60 is: 732,086.70
Step by Step Solution
- Step 1: Write the proportion equation
1,087,778.42 : 1,631,106.84 = 488,225.60 : x - Step 2: Convert to fraction form
1,087,778.42/1,631,106.84 = 488,225.60/x - Step 3: Cross multiply
1,087,778.42x = 1,631,106.84 × 488,225.60 - Step 4: Simplify right side
1,087,778.42x = 796,348,115,623.10 - Step 5: Solve for x
x = 796,348,115,623.10/1,087,778.42 - Step 6: Final answer
x = 732,086.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.