Finding the Fourth Proportional to 729,843.12, 1,007,188.44 and 407,557.08
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Solution
The fourth proportional to 729,843.12, 1,007,188.44 and 407,557.08 is: 562,431.53
Step by Step Solution
- Step 1: Write the proportion equation
729,843.12 : 1,007,188.44 = 407,557.08 : x - Step 2: Convert to fraction form
729,843.12/1,007,188.44 = 407,557.08/x - Step 3: Cross multiply
729,843.12x = 1,007,188.44 × 407,557.08 - Step 4: Simplify right side
729,843.12x = 410,486,779,616.16 - Step 5: Solve for x
x = 410,486,779,616.16/729,843.12 - Step 6: Final answer
x = 562,431.53
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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.