Finding the Fourth Proportional to 874,782.72, 1,207,203.84 and 492,814.08
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Solution
The fourth proportional to 874,782.72, 1,207,203.84 and 492,814.08 is: 680,085.51
Step by Step Solution
- Step 1: Write the proportion equation
874,782.72 : 1,207,203.84 = 492,814.08 : x - Step 2: Convert to fraction form
874,782.72/1,207,203.84 = 492,814.08/x - Step 3: Cross multiply
874,782.72x = 1,207,203.84 × 492,814.08 - Step 4: Simplify right side
874,782.72x = 594,927,049,782.07 - Step 5: Solve for x
x = 594,927,049,782.07/874,782.72 - Step 6: Final answer
x = 680,085.51
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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.