Finding the Fourth Proportional to 1,141,228.05, 1,576,535.18 and 911,483.70
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Solution
The fourth proportional to 1,141,228.05, 1,576,535.18 and 911,483.70 is: 1,259,157.72
Step by Step Solution
- Step 1: Write the proportion equation
1,141,228.05 : 1,576,535.18 = 911,483.70 : x - Step 2: Convert to fraction form
1,141,228.05/1,576,535.18 = 911,483.70/x - Step 3: Cross multiply
1,141,228.05x = 1,576,535.18 × 911,483.70 - Step 4: Simplify right side
1,141,228.05x = 1,436,986,114,489.15 - Step 5: Solve for x
x = 1,436,986,114,489.15/1,141,228.05 - Step 6: Final answer
x = 1,259,157.72
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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.