Finding the Fourth Proportional to 745,759.31, 1,117,771.42 and 426,135.26
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Solution
The fourth proportional to 745,759.31, 1,117,771.42 and 426,135.26 is: 638,707.17
Step by Step Solution
- Step 1: Write the proportion equation
745,759.31 : 1,117,771.42 = 426,135.26 : x - Step 2: Convert to fraction form
745,759.31/1,117,771.42 = 426,135.26/x - Step 3: Cross multiply
745,759.31x = 1,117,771.42 × 426,135.26 - Step 4: Simplify right side
745,759.31x = 476,321,814,682.27 - Step 5: Solve for x
x = 476,321,814,682.27/745,759.31 - Step 6: Final answer
x = 638,707.17
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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.