Finding the Fourth Proportional to 2,539,873.05, 3,505,027.08 and 1,378,319.31
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Solution
The fourth proportional to 2,539,873.05, 3,505,027.08 and 1,378,319.31 is: 1,902,081.88
Step by Step Solution
- Step 1: Write the proportion equation
2,539,873.05 : 3,505,027.08 = 1,378,319.31 : x - Step 2: Convert to fraction form
2,539,873.05/3,505,027.08 = 1,378,319.31/x - Step 3: Cross multiply
2,539,873.05x = 3,505,027.08 × 1,378,319.31 - Step 4: Simplify right side
2,539,873.05x = 4,831,046,506,436.92 - Step 5: Solve for x
x = 4,831,046,506,436.92/2,539,873.05 - Step 6: Final answer
x = 1,902,081.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.