Finding the Fourth Proportional to 382,979.19, 528,501.73 and 210,895.79
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Solution
The fourth proportional to 382,979.19, 528,501.73 and 210,895.79 is: 291,030.92
Step by Step Solution
- Step 1: Write the proportion equation
382,979.19 : 528,501.73 = 210,895.79 : x - Step 2: Convert to fraction form
382,979.19/528,501.73 = 210,895.79/x - Step 3: Cross multiply
382,979.19x = 528,501.73 × 210,895.79 - Step 4: Simplify right side
382,979.19x = 111,458,787,090.40 - Step 5: Solve for x
x = 111,458,787,090.40/382,979.19 - Step 6: Final answer
x = 291,030.92
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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.