Finding the Fourth Proportional to 1,276,961.36, 1,915,812 and 378,420.26
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Solution
The fourth proportional to 1,276,961.36, 1,915,812 and 378,420.26 is: 567,740.02
Step by Step Solution
- Step 1: Write the proportion equation
1,276,961.36 : 1,915,812 = 378,420.26 : x - Step 2: Convert to fraction form
1,276,961.36/1,915,812 = 378,420.26/x - Step 3: Cross multiply
1,276,961.36x = 1,915,812 × 378,420.26 - Step 4: Simplify right side
1,276,961.36x = 724,982,065,572.06 - Step 5: Solve for x
x = 724,982,065,572.06/1,276,961.36 - Step 6: Final answer
x = 567,740.02
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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.