Finding the Fourth Proportional to 2,539,976.78, 3,505,193.61 and 1,378,433.06
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Solution
The fourth proportional to 2,539,976.78, 3,505,193.61 and 1,378,433.06 is: 1,902,251.55
Step by Step Solution
- Step 1: Write the proportion equation
2,539,976.78 : 3,505,193.61 = 1,378,433.06 : x - Step 2: Convert to fraction form
2,539,976.78/3,505,193.61 = 1,378,433.06/x - Step 3: Cross multiply
2,539,976.78x = 3,505,193.61 × 1,378,433.06 - Step 4: Simplify right side
2,539,976.78x = 4,831,674,762,487.73 - Step 5: Solve for x
x = 4,831,674,762,487.73/2,539,976.78 - Step 6: Final answer
x = 1,902,251.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.