Finding the Fourth Proportional to 2,128,468.19, 2,937,294.90 and 1,161,618.98
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Solution
The fourth proportional to 2,128,468.19, 2,937,294.90 and 1,161,618.98 is: 1,603,038.99
Step by Step Solution
- Step 1: Write the proportion equation
2,128,468.19 : 2,937,294.90 = 1,161,618.98 : x - Step 2: Convert to fraction form
2,128,468.19/2,937,294.90 = 1,161,618.98/x - Step 3: Cross multiply
2,128,468.19x = 2,937,294.90 × 1,161,618.98 - Step 4: Simplify right side
2,128,468.19x = 3,412,017,491,010.73 - Step 5: Solve for x
x = 3,412,017,491,010.73/2,128,468.19 - Step 6: Final answer
x = 1,603,038.99
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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.