Finding the Fourth Proportional to 2,077,260.80, 3,115,891.20 and 1,178,355.20
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Solution
The fourth proportional to 2,077,260.80, 3,115,891.20 and 1,178,355.20 is: 1,767,532.80
Step by Step Solution
- Step 1: Write the proportion equation
2,077,260.80 : 3,115,891.20 = 1,178,355.20 : x - Step 2: Convert to fraction form
2,077,260.80/3,115,891.20 = 1,178,355.20/x - Step 3: Cross multiply
2,077,260.80x = 3,115,891.20 × 1,178,355.20 - Step 4: Simplify right side
2,077,260.80x = 3,671,626,598,154.24 - Step 5: Solve for x
x = 3,671,626,598,154.24/2,077,260.80 - Step 6: Final answer
x = 1,767,532.80
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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.