Finding the Fourth Proportional to 679,626.39, 938,027.11 and 431,107.59
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Solution
The fourth proportional to 679,626.39, 938,027.11 and 431,107.59 is: 595,018.99
Step by Step Solution
- Step 1: Write the proportion equation
679,626.39 : 938,027.11 = 431,107.59 : x - Step 2: Convert to fraction form
679,626.39/938,027.11 = 431,107.59/x - Step 3: Cross multiply
679,626.39x = 938,027.11 × 431,107.59 - Step 4: Simplify right side
679,626.39x = 404,390,606,746.77 - Step 5: Solve for x
x = 404,390,606,746.77/679,626.39 - Step 6: Final answer
x = 595,018.99
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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.