Finding the Fourth Proportional to 2,992,876.80, 4,489,315.20 and 749,011.20
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Solution
The fourth proportional to 2,992,876.80, 4,489,315.20 and 749,011.20 is: 1,123,516.80
Step by Step Solution
- Step 1: Write the proportion equation
2,992,876.80 : 4,489,315.20 = 749,011.20 : x - Step 2: Convert to fraction form
2,992,876.80/4,489,315.20 = 749,011.20/x - Step 3: Cross multiply
2,992,876.80x = 4,489,315.20 × 749,011.20 - Step 4: Simplify right side
2,992,876.80x = 3,362,547,365,130.24 - Step 5: Solve for x
x = 3,362,547,365,130.24/2,992,876.80 - Step 6: Final answer
x = 1,123,516.80
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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.