Finding the Fourth Proportional to 1,261,294.12, 1,890,815.96 and 462,389.05
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Solution
The fourth proportional to 1,261,294.12, 1,890,815.96 and 462,389.05 is: 693,171.07
Step by Step Solution
- Step 1: Write the proportion equation
1,261,294.12 : 1,890,815.96 = 462,389.05 : x - Step 2: Convert to fraction form
1,261,294.12/1,890,815.96 = 462,389.05/x - Step 3: Cross multiply
1,261,294.12x = 1,890,815.96 × 462,389.05 - Step 4: Simplify right side
1,261,294.12x = 874,292,593,157.29 - Step 5: Solve for x
x = 874,292,593,157.29/1,261,294.12 - Step 6: Final answer
x = 693,171.07
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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.