Finding the Fourth Proportional to 543,679.36, 749,398.08 and 405,623.68
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Solution
The fourth proportional to 543,679.36, 749,398.08 and 405,623.68 is: 559,104.56
Step by Step Solution
- Step 1: Write the proportion equation
543,679.36 : 749,398.08 = 405,623.68 : x - Step 2: Convert to fraction form
543,679.36/749,398.08 = 405,623.68/x - Step 3: Cross multiply
543,679.36x = 749,398.08 × 405,623.68 - Step 4: Simplify right side
543,679.36x = 303,973,606,994.53 - Step 5: Solve for x
x = 303,973,606,994.53/543,679.36 - Step 6: Final answer
x = 559,104.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.