Finding the Fourth Proportional to 1,854,685.14, 2,782,216.50 and 640,103.70
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Solution
The fourth proportional to 1,854,685.14, 2,782,216.50 and 640,103.70 is: 960,220.71
Step by Step Solution
- Step 1: Write the proportion equation
1,854,685.14 : 2,782,216.50 = 640,103.70 : x - Step 2: Convert to fraction form
1,854,685.14/2,782,216.50 = 640,103.70/x - Step 3: Cross multiply
1,854,685.14x = 2,782,216.50 × 640,103.70 - Step 4: Simplify right side
1,854,685.14x = 1,780,907,075,851.05 - Step 5: Solve for x
x = 1,780,907,075,851.05/1,854,685.14 - Step 6: Final answer
x = 960,220.71
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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.