Finding the Fourth Proportional to 1,605,638.13, 2,215,810.99 and 880,442.60
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Solution
The fourth proportional to 1,605,638.13, 2,215,810.99 and 880,442.60 is: 1,215,027.44
Step by Step Solution
- Step 1: Write the proportion equation
1,605,638.13 : 2,215,810.99 = 880,442.60 : x - Step 2: Convert to fraction form
1,605,638.13/2,215,810.99 = 880,442.60/x - Step 3: Cross multiply
1,605,638.13x = 2,215,810.99 × 880,442.60 - Step 4: Simplify right side
1,605,638.13x = 1,950,894,379,165.67 - Step 5: Solve for x
x = 1,950,894,379,165.67/1,605,638.13 - Step 6: Final answer
x = 1,215,027.44
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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.