Finding the Fourth Proportional to 2,545,189.72, 3,512,363.58 and 1,399,289.56
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Solution
The fourth proportional to 2,545,189.72, 3,512,363.58 and 1,399,289.56 is: 1,931,020.56
Step by Step Solution
- Step 1: Write the proportion equation
2,545,189.72 : 3,512,363.58 = 1,399,289.56 : x - Step 2: Convert to fraction form
2,545,189.72/3,512,363.58 = 1,399,289.56/x - Step 3: Cross multiply
2,545,189.72x = 3,512,363.58 × 1,399,289.56 - Step 4: Simplify right side
2,545,189.72x = 4,914,813,688,418.23 - Step 5: Solve for x
x = 4,914,813,688,418.23/2,545,189.72 - Step 6: Final answer
x = 1,931,020.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.