Finding the Fourth Proportional to 1,107,551.45, 1,660,835.10 and 433,408.70
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Solution
The fourth proportional to 1,107,551.45, 1,660,835.10 and 433,408.70 is: 649,920.49
Step by Step Solution
- Step 1: Write the proportion equation
1,107,551.45 : 1,660,835.10 = 433,408.70 : x - Step 2: Convert to fraction form
1,107,551.45/1,660,835.10 = 433,408.70/x - Step 3: Cross multiply
1,107,551.45x = 1,660,835.10 × 433,408.70 - Step 4: Simplify right side
1,107,551.45x = 719,820,381,605.37 - Step 5: Solve for x
x = 719,820,381,605.37/1,107,551.45 - Step 6: Final answer
x = 649,920.49
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1.5x scale
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.