Finding the Fourth Proportional to 1,072,649.70, 1,608,953.84 and 432,936.54
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Solution
The fourth proportional to 1,072,649.70, 1,608,953.84 and 432,936.54 is: 649,396.45
Step by Step Solution
- Step 1: Write the proportion equation
1,072,649.70 : 1,608,953.84 = 432,936.54 : x - Step 2: Convert to fraction form
1,072,649.70/1,608,953.84 = 432,936.54/x - Step 3: Cross multiply
1,072,649.70x = 1,608,953.84 × 432,936.54 - Step 4: Simplify right side
1,072,649.70x = 696,574,908,509.31 - Step 5: Solve for x
x = 696,574,908,509.31/1,072,649.70 - Step 6: Final answer
x = 649,396.45
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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.