Finding the Fourth Proportional to 1,432,815.26, 1,977,301.37 and 820,955.75
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Solution
The fourth proportional to 1,432,815.26, 1,977,301.37 and 820,955.75 is: 1,132,928.28
Step by Step Solution
- Step 1: Write the proportion equation
1,432,815.26 : 1,977,301.37 = 820,955.75 : x - Step 2: Convert to fraction form
1,432,815.26/1,977,301.37 = 820,955.75/x - Step 3: Cross multiply
1,432,815.26x = 1,977,301.37 × 820,955.75 - Step 4: Simplify right side
1,432,815.26x = 1,623,276,925,079.60 - Step 5: Solve for x
x = 1,623,276,925,079.60/1,432,815.26 - Step 6: Final answer
x = 1,132,928.28
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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.