Finding the Fourth Proportional to 3,260,431.30, 4,890,646.95 and 1,129,807.30
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Solution
The fourth proportional to 3,260,431.30, 4,890,646.95 and 1,129,807.30 is: 1,694,710.95
Step by Step Solution
- Step 1: Write the proportion equation
3,260,431.30 : 4,890,646.95 = 1,129,807.30 : x - Step 2: Convert to fraction form
3,260,431.30/4,890,646.95 = 1,129,807.30/x - Step 3: Cross multiply
3,260,431.30x = 4,890,646.95 × 1,129,807.30 - Step 4: Simplify right side
3,260,431.30x = 5,525,488,625,832.74 - Step 5: Solve for x
x = 5,525,488,625,832.74/3,260,431.30 - Step 6: Final answer
x = 1,694,710.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.