Finding the Fourth Proportional to 725,089.08, 1,087,873.53 and 388,054.62
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Solution
The fourth proportional to 725,089.08, 1,087,873.53 and 388,054.62 is: 582,210.33
Step by Step Solution
- Step 1: Write the proportion equation
725,089.08 : 1,087,873.53 = 388,054.62 : x - Step 2: Convert to fraction form
725,089.08/1,087,873.53 = 388,054.62/x - Step 3: Cross multiply
725,089.08x = 1,087,873.53 × 388,054.62 - Step 4: Simplify right side
725,089.08x = 422,154,349,292.21 - Step 5: Solve for x
x = 422,154,349,292.21/725,089.08 - Step 6: Final answer
x = 582,210.33
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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.