Finding the Fourth Proportional to 1,453,272.90, 2,178,925.20 and 742,716.60
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Solution
The fourth proportional to 1,453,272.90, 2,178,925.20 and 742,716.60 is: 1,113,571.94
Step by Step Solution
- Step 1: Write the proportion equation
1,453,272.90 : 2,178,925.20 = 742,716.60 : x - Step 2: Convert to fraction form
1,453,272.90/2,178,925.20 = 742,716.60/x - Step 3: Cross multiply
1,453,272.90x = 2,178,925.20 × 742,716.60 - Step 4: Simplify right side
1,453,272.90x = 1,618,323,916,198.32 - Step 5: Solve for x
x = 1,618,323,916,198.32/1,453,272.90 - Step 6: Final answer
x = 1,113,571.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.