Finding the Fourth Proportional to 1,440,971.37, 2,161,206.70 and 542,420.15
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Solution
The fourth proportional to 1,440,971.37, 2,161,206.70 and 542,420.15 is: 813,535.98
Step by Step Solution
- Step 1: Write the proportion equation
1,440,971.37 : 2,161,206.70 = 542,420.15 : x - Step 2: Convert to fraction form
1,440,971.37/2,161,206.70 = 542,420.15/x - Step 3: Cross multiply
1,440,971.37x = 2,161,206.70 × 542,420.15 - Step 4: Simplify right side
1,440,971.37x = 1,172,282,050,232.92 - Step 5: Solve for x
x = 1,172,282,050,232.92/1,440,971.37 - Step 6: Final answer
x = 813,535.98
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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.