Finding the Fourth Proportional to 2,918,207.20, 4,375,237.20 and 1,321,535.20
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Solution
The fourth proportional to 2,918,207.20, 4,375,237.20 and 1,321,535.20 is: 1,981,363.75
Step by Step Solution
- Step 1: Write the proportion equation
2,918,207.20 : 4,375,237.20 = 1,321,535.20 : x - Step 2: Convert to fraction form
2,918,207.20/4,375,237.20 = 1,321,535.20/x - Step 3: Cross multiply
2,918,207.20x = 4,375,237.20 × 1,321,535.20 - Step 4: Simplify right side
2,918,207.20x = 5,782,029,968,149.44 - Step 5: Solve for x
x = 5,782,029,968,149.44/2,918,207.20 - Step 6: Final answer
x = 1,981,363.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.