Finding the Fourth Proportional to 1,905,153.30, 2,629,102.32 and 1,045,728.18
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Solution
The fourth proportional to 1,905,153.30, 2,629,102.32 and 1,045,728.18 is: 1,443,099.82
Step by Step Solution
- Step 1: Write the proportion equation
1,905,153.30 : 2,629,102.32 = 1,045,728.18 : x - Step 2: Convert to fraction form
1,905,153.30/2,629,102.32 = 1,045,728.18/x - Step 3: Cross multiply
1,905,153.30x = 2,629,102.32 × 1,045,728.18 - Step 4: Simplify right side
1,905,153.30x = 2,749,326,384,127.38 - Step 5: Solve for x
x = 2,749,326,384,127.38/1,905,153.30 - Step 6: Final answer
x = 1,443,099.82
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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.