Finding the Fourth Proportional to 3,428,321.06, 5,138,855.88 and 1,267,957.81
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Solution
The fourth proportional to 3,428,321.06, 5,138,855.88 and 1,267,957.81 is: 1,900,595.75
Step by Step Solution
- Step 1: Write the proportion equation
3,428,321.06 : 5,138,855.88 = 1,267,957.81 : x - Step 2: Convert to fraction form
3,428,321.06/5,138,855.88 = 1,267,957.81/x - Step 3: Cross multiply
3,428,321.06x = 5,138,855.88 × 1,267,957.81 - Step 4: Simplify right side
3,428,321.06x = 6,515,852,436,509.50 - Step 5: Solve for x
x = 6,515,852,436,509.50/3,428,321.06 - Step 6: Final answer
x = 1,900,595.75
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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.