Finding the Fourth Proportional to 409,147.08, 613,786.74 and 120,987.96
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Solution
The fourth proportional to 409,147.08, 613,786.74 and 120,987.96 is: 181,501.49
Step by Step Solution
- Step 1: Write the proportion equation
409,147.08 : 613,786.74 = 120,987.96 : x - Step 2: Convert to fraction form
409,147.08/613,786.74 = 120,987.96/x - Step 3: Cross multiply
409,147.08x = 613,786.74 × 120,987.96 - Step 4: Simplify right side
409,147.08x = 74,260,805,547.65 - Step 5: Solve for x
x = 74,260,805,547.65/409,147.08 - Step 6: Final answer
x = 181,501.49
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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.