Finding the Fourth Proportional to 1,912,315.53, 2,638,204.75 and 1,137,791.53
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Solution
The fourth proportional to 1,912,315.53, 2,638,204.75 and 1,137,791.53 is: 1,569,681.88
Step by Step Solution
- Step 1: Write the proportion equation
1,912,315.53 : 2,638,204.75 = 1,137,791.53 : x - Step 2: Convert to fraction form
1,912,315.53/2,638,204.75 = 1,137,791.53/x - Step 3: Cross multiply
1,912,315.53x = 2,638,204.75 × 1,137,791.53 - Step 4: Simplify right side
1,912,315.53x = 3,001,727,034,295.64 - Step 5: Solve for x
x = 3,001,727,034,295.64/1,912,315.53 - Step 6: Final answer
x = 1,569,681.88
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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.