Finding the Fourth Proportional to 1,107,245.43, 1,528,003.71 and 623,817.99
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Solution
The fourth proportional to 1,107,245.43, 1,528,003.71 and 623,817.99 is: 860,871.65
Step by Step Solution
- Step 1: Write the proportion equation
1,107,245.43 : 1,528,003.71 = 623,817.99 : x - Step 2: Convert to fraction form
1,107,245.43/1,528,003.71 = 623,817.99/x - Step 3: Cross multiply
1,107,245.43x = 1,528,003.71 × 623,817.99 - Step 4: Simplify right side
1,107,245.43x = 953,196,203,084.74 - Step 5: Solve for x
x = 953,196,203,084.74/1,107,245.43 - Step 6: Final answer
x = 860,871.65
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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.