Finding the Fourth Proportional to 1,432,878.53, 1,977,654.83 and 821,441.79
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Solution
The fourth proportional to 1,432,878.53, 1,977,654.83 and 821,441.79 is: 1,133,751.60
Step by Step Solution
- Step 1: Write the proportion equation
1,432,878.53 : 1,977,654.83 = 821,441.79 : x - Step 2: Convert to fraction form
1,432,878.53/1,977,654.83 = 821,441.79/x - Step 3: Cross multiply
1,432,878.53x = 1,977,654.83 × 821,441.79 - Step 4: Simplify right side
1,432,878.53x = 1,624,528,319,450.14 - Step 5: Solve for x
x = 1,624,528,319,450.14/1,432,878.53 - Step 6: Final answer
x = 1,133,751.60
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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.