Finding the Fourth Proportional to 745,758.31, 1,117,769.92 and 426,134.26
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Solution
The fourth proportional to 745,758.31, 1,117,769.92 and 426,134.26 is: 638,705.66
Step by Step Solution
- Step 1: Write the proportion equation
745,758.31 : 1,117,769.92 = 426,134.26 : x - Step 2: Convert to fraction form
745,758.31/1,117,769.92 = 426,134.26/x - Step 3: Cross multiply
745,758.31x = 1,117,769.92 × 426,134.26 - Step 4: Simplify right side
745,758.31x = 476,320,053,849.70 - Step 5: Solve for x
x = 476,320,053,849.70/745,758.31 - Step 6: Final answer
x = 638,705.66
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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.