Finding the Fourth Proportional to 2,209,860.99, 3,049,577.54 and 1,242,991.95
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Solution
The fourth proportional to 2,209,860.99, 3,049,577.54 and 1,242,991.95 is: 1,715,311.66
Step by Step Solution
- Step 1: Write the proportion equation
2,209,860.99 : 3,049,577.54 = 1,242,991.95 : x - Step 2: Convert to fraction form
2,209,860.99/3,049,577.54 = 1,242,991.95/x - Step 3: Cross multiply
2,209,860.99x = 3,049,577.54 × 1,242,991.95 - Step 4: Simplify right side
2,209,860.99x = 3,790,600,326,905.84 - Step 5: Solve for x
x = 3,790,600,326,905.84/2,209,860.99 - Step 6: Final answer
x = 1,715,311.66
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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.