Finding the Fourth Proportional to 1,379,906.70, 2,069,860.05 and 1,255,903.80
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Solution
The fourth proportional to 1,379,906.70, 2,069,860.05 and 1,255,903.80 is: 1,883,855.70
Step by Step Solution
- Step 1: Write the proportion equation
1,379,906.70 : 2,069,860.05 = 1,255,903.80 : x - Step 2: Convert to fraction form
1,379,906.70/2,069,860.05 = 1,255,903.80/x - Step 3: Cross multiply
1,379,906.70x = 2,069,860.05 × 1,255,903.80 - Step 4: Simplify right side
1,379,906.70x = 2,599,545,102,263.19 - Step 5: Solve for x
x = 2,599,545,102,263.19/1,379,906.70 - Step 6: Final answer
x = 1,883,855.70
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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.