Finding the Fourth Proportional to 3,437,785.93, 4,743,866.88 and 1,987,574.84
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Solution
The fourth proportional to 3,437,785.93, 4,743,866.88 and 1,987,574.84 is: 2,742,692.72
Step by Step Solution
- Step 1: Write the proportion equation
3,437,785.93 : 4,743,866.88 = 1,987,574.84 : x - Step 2: Convert to fraction form
3,437,785.93/4,743,866.88 = 1,987,574.84/x - Step 3: Cross multiply
3,437,785.93x = 4,743,866.88 × 1,987,574.84 - Step 4: Simplify right side
3,437,785.93x = 9,428,790,441,315.40 - Step 5: Solve for x
x = 9,428,790,441,315.40/3,437,785.93 - Step 6: Final answer
x = 2,742,692.72
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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.