Finding the Fourth Proportional to 1,487,073, 2,230,605.12 and 422,115.96
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Solution
The fourth proportional to 1,487,073, 2,230,605.12 and 422,115.96 is: 633,172.70
Step by Step Solution
- Step 1: Write the proportion equation
1,487,073 : 2,230,605.12 = 422,115.96 : x - Step 2: Convert to fraction form
1,487,073/2,230,605.12 = 422,115.96/x - Step 3: Cross multiply
1,487,073x = 2,230,605.12 × 422,115.96 - Step 4: Simplify right side
1,487,073x = 941,574,021,609.72 - Step 5: Solve for x
x = 941,574,021,609.72/1,487,073 - Step 6: Final answer
x = 633,172.70
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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.