Finding the Fourth Proportional to 2,912,276.80, 4,368,415.20 and 2,746,388.80
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Solution
The fourth proportional to 2,912,276.80, 4,368,415.20 and 2,746,388.80 is: 4,119,583.20
Step by Step Solution
- Step 1: Write the proportion equation
2,912,276.80 : 4,368,415.20 = 2,746,388.80 : x - Step 2: Convert to fraction form
2,912,276.80/4,368,415.20 = 2,746,388.80/x - Step 3: Cross multiply
2,912,276.80x = 4,368,415.20 × 2,746,388.80 - Step 4: Simplify right side
2,912,276.80x = 11,997,366,579,029.76 - Step 5: Solve for x
x = 11,997,366,579,029.76/2,912,276.80 - Step 6: Final answer
x = 4,119,583.20
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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.