Finding the Fourth Proportional to 751,380.71, 1,127,218.68 and 278,070.17
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Solution
The fourth proportional to 751,380.71, 1,127,218.68 and 278,070.17 is: 417,159.88
Step by Step Solution
- Step 1: Write the proportion equation
751,380.71 : 1,127,218.68 = 278,070.17 : x - Step 2: Convert to fraction form
751,380.71/1,127,218.68 = 278,070.17/x - Step 3: Cross multiply
751,380.71x = 1,127,218.68 × 278,070.17 - Step 4: Simplify right side
751,380.71x = 313,445,884,338.68 - Step 5: Solve for x
x = 313,445,884,338.68/751,380.71 - Step 6: Final answer
x = 417,159.88
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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.