Finding the Fourth Proportional to 1,503,395.30, 2,255,424.64 and 438,520.70
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Solution
The fourth proportional to 1,503,395.30, 2,255,424.64 and 438,520.70 is: 657,877.80
Step by Step Solution
- Step 1: Write the proportion equation
1,503,395.30 : 2,255,424.64 = 438,520.70 : x - Step 2: Convert to fraction form
1,503,395.30/2,255,424.64 = 438,520.70/x - Step 3: Cross multiply
1,503,395.30x = 2,255,424.64 × 438,520.70 - Step 4: Simplify right side
1,503,395.30x = 989,050,391,930.05 - Step 5: Solve for x
x = 989,050,391,930.05/1,503,395.30 - Step 6: Final answer
x = 657,877.80
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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.