Finding the Fourth Proportional to 2,129,234.07, 2,938,354.95 and 1,211,463.19
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Solution
The fourth proportional to 2,129,234.07, 2,938,354.95 and 1,211,463.19 is: 1,671,825.99
Step by Step Solution
- Step 1: Write the proportion equation
2,129,234.07 : 2,938,354.95 = 1,211,463.19 : x - Step 2: Convert to fraction form
2,129,234.07/2,938,354.95 = 1,211,463.19/x - Step 3: Cross multiply
2,129,234.07x = 2,938,354.95 × 1,211,463.19 - Step 4: Simplify right side
2,129,234.07x = 3,559,708,861,079.29 - Step 5: Solve for x
x = 3,559,708,861,079.29/2,129,234.07 - Step 6: Final answer
x = 1,671,825.99
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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.