Finding the Fourth Proportional to 1,603,549.20, 2,212,933.64 and 915,207.28
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Solution
The fourth proportional to 1,603,549.20, 2,212,933.64 and 915,207.28 is: 1,263,006.45
Step by Step Solution
- Step 1: Write the proportion equation
1,603,549.20 : 2,212,933.64 = 915,207.28 : x - Step 2: Convert to fraction form
1,603,549.20/2,212,933.64 = 915,207.28/x - Step 3: Cross multiply
1,603,549.20x = 2,212,933.64 × 915,207.28 - Step 4: Simplify right side
1,603,549.20x = 2,025,292,977,484.90 - Step 5: Solve for x
x = 2,025,292,977,484.90/1,603,549.20 - Step 6: Final answer
x = 1,263,006.45
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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.